<![CDATA[Streaming Media Forums

<![CDATA[Streaming Media Forums - All Forums]]> http://forums.streamingmedia.com/ Fri, 12 Mar 2010 13:37:27 -0500 MyBB <![CDATA[Streaming From Different Locations]]> http://forums.streamingmedia.com/thread-10799.html Thu, 11 Mar 2010 15:53:04 -0500 win1for http://forums.streamingmedia.com/thread-10799.html
I have the following question and i need your help .

1)
We would like to stream live videos on the internet to our viewers. The servers(webservers and streaming servers) hosting the sites are in USA.

But we want to stream from a hall in one of the countries in Africa. How can we stream live to the servers in America? The servers can even be in Europe whiles we want to stream from Africa or Asia.

How can we send the streaming videos to the servers in USA so that viewers can watch it live?

How is it done in real world?

The whole question is how can we stream live videos on the internet from a location other than the location where our hosting servers are located.

It can even be that we want to stream the videos from Arizona whiles the hosting servers(webservers and streaming servers) are located in Washington.

I am a newbie so i need a detailed explanation of how it can be done including even information about all hardwares.

I need the complete information about how the whole thing is done in real world.

I welcome all your detail answers

Pointers to tutorials are also kindly welcome.

Thanks for your answers.

]]>
I have the following question and i need your help .

1)
We would like to stream live videos on the internet to our viewers. The servers(webservers and streaming servers) hosting the sites are in USA.

But we want to stream from a hall in one of the countries in Africa. How can we stream live to the servers in America? The servers can even be in Europe whiles we want to stream from Africa or Asia.

How can we send the streaming videos to the servers in USA so that viewers can watch it live?

How is it done in real world?

The whole question is how can we stream live videos on the internet from a location other than the location where our hosting servers are located.

It can even be that we want to stream the videos from Arizona whiles the hosting servers(webservers and streaming servers) are located in Washington.

I am a newbie so i need a detailed explanation of how it can be done including even information about all hardwares.

I need the complete information about how the whole thing is done in real world.

I welcome all your detail answers

Pointers to tutorials are also kindly welcome.

Thanks for your answers.

]]> <![CDATA[QuickTime streaming with Viewcast Niagara Pro II]]> http://forums.streamingmedia.com/thread-10798.html Thu, 11 Mar 2010 12:06:21 -0500 cablejames http://forums.streamingmedia.com/thread-10798.html
When we tried to configure the Niagara to stream H.264 to our local QuickTime server we can get it to work but it is very unstable. The connections seem to be sporadic and will freeze or drop connection randomly. Depending on the encode rate we have trouble connecting to the stream. The .SDP file setting on the Niagara will randomly default to a square character when you start encoding, so once the encode is stopped you must reinput the .SDP file name before it can be restarted. We have tried multiple configurations on the Niagara but, have not found a remedy. Viewcast prefers to support products under maintenance agreements and have been less than helpful on this issue as we do not pay for maintenance.

When connecting to the same QuickTime server using QuickTime Broadcaster we get perfect streams.

The documentation for the Niagara does not specifically state that it is compatible with QuickTime, but the H.264 profile is stated to be standards based. The Niagara Pro II software MPEG-4 compression engine provides:

(1) H.264, MPEG-4, Part 10, (Baseline Profile.)
(2) MPEG-4, Part 2, (Simple Profile.)
(3) H.263 (Simple Profile.)

The H.264 profile required by the QuickTime server appears to be consistent with the Niagara and should work with H.264, MPEG-4, Part 10 Baseline Profile.

Does anyone have experience with using a Viewcast Niagara Pro II to encode QuickTime streams?

Are there any server side settings I should try?

Are there any known bugs that a new firmware for the Niagara may resolve?

Thank you for any suggestions!

James

]]>
When we tried to configure the Niagara to stream H.264 to our local QuickTime server we can get it to work but it is very unstable. The connections seem to be sporadic and will freeze or drop connection randomly. Depending on the encode rate we have trouble connecting to the stream. The .SDP file setting on the Niagara will randomly default to a square character when you start encoding, so once the encode is stopped you must reinput the .SDP file name before it can be restarted. We have tried multiple configurations on the Niagara but, have not found a remedy. Viewcast prefers to support products under maintenance agreements and have been less than helpful on this issue as we do not pay for maintenance.

When connecting to the same QuickTime server using QuickTime Broadcaster we get perfect streams.

The documentation for the Niagara does not specifically state that it is compatible with QuickTime, but the H.264 profile is stated to be standards based. The Niagara Pro II software MPEG-4 compression engine provides:

(1) H.264, MPEG-4, Part 10, (Baseline Profile.)
(2) MPEG-4, Part 2, (Simple Profile.)
(3) H.263 (Simple Profile.)

The H.264 profile required by the QuickTime server appears to be consistent with the Niagara and should work with H.264, MPEG-4, Part 10 Baseline Profile.

Does anyone have experience with using a Viewcast Niagara Pro II to encode QuickTime streams?

Are there any server side settings I should try?

Are there any known bugs that a new firmware for the Niagara may resolve?

Thank you for any suggestions!

James

]]> <![CDATA[RE: rtsp handling in windows environment]]> http://forums.streamingmedia.com/thread-10797.html Tue, 09 Mar 2010 03:30:36 -0500 Dave http://forums.streamingmedia.com/thread-10797.html

]]>

]]> <![CDATA[rtsp handling in windows environment]]> http://forums.streamingmedia.com/thread-10797.html Tue, 09 Mar 2010 01:35:47 -0500 wayne donnelly http://forums.streamingmedia.com/thread-10797.html I'm running Tiger server and streaming rtsp (not http) music video files onto the www. Since I'm using a mac and viewing from a mac, there's few problems. With windows machines it's a different story. Firefox doesn't know how to handle rtsp and provides an error message saying "firefox doesn't know how to handle files of this type". What I think I need is code to tell my server if an http request comes in, send out an rtsp stream on port 80 (damn the torpedos), although there may be other solutions. Given there's 9 PC users to each mac user and I want as wide a readership for my books as possible (which use video to supply additional content), insuring the videos play on PC's is integral. Does anyone have any solutions? I'm happy with the performance of my server in terms of use on macs, it's PC's that pose the problem!

]]> I'm running Tiger server and streaming rtsp (not http) music video files onto the www. Since I'm using a mac and viewing from a mac, there's few problems. With windows machines it's a different story. Firefox doesn't know how to handle rtsp and provides an error message saying "firefox doesn't know how to handle files of this type". What I think I need is code to tell my server if an http request comes in, send out an rtsp stream on port 80 (damn the torpedos), although there may be other solutions. Given there's 9 PC users to each mac user and I want as wide a readership for my books as possible (which use video to supply additional content), insuring the videos play on PC's is integral. Does anyone have any solutions? I'm happy with the performance of my server in terms of use on macs, it's PC's that pose the problem!

]]> <![CDATA[RE: Distance learning in music education?]]> http://forums.streamingmedia.com/thread-10796.html Wed, 03 Mar 2010 07:14:32 -0500 Dave http://forums.streamingmedia.com/thread-10796.html
Whilst talking about Polycom video solutions 'revolutionising their application' they appeared to be demonstrating an instance of what looked like Adobe Flash Media Live Encoder !?

What does interest me though is the likes of the Polycom Video Media Server and the Tandberg Content Server as merging video conferencing with live streaming and video on-demand applications has always seemed like a logical step to me.

If you are going to install an expensive CODEC into classrooms for video conferencing, why not also utilise it as an encoder for live streaming applications. Chances are that your vid conf CODEC is also capturing a presentation PC for the H.239 data channel.

The ability therefore to be able to transparently send these streams from the vid conf CODEC to a streaming server for live webcasting or to a fileserver for on-demand playback is long overdue.

Dave

]]>
Whilst talking about Polycom video solutions 'revolutionising their application' they appeared to be demonstrating an instance of what looked like Adobe Flash Media Live Encoder !?

What does interest me though is the likes of the Polycom Video Media Server and the Tandberg Content Server as merging video conferencing with live streaming and video on-demand applications has always seemed like a logical step to me.

If you are going to install an expensive CODEC into classrooms for video conferencing, why not also utilise it as an encoder for live streaming applications. Chances are that your vid conf CODEC is also capturing a presentation PC for the H.239 data channel.

The ability therefore to be able to transparently send these streams from the vid conf CODEC to a streaming server for live webcasting or to a fileserver for on-demand playback is long overdue.

Dave

]]> <![CDATA[Distance learning in music education?]]> http://forums.streamingmedia.com/thread-10796.html Wed, 03 Mar 2010 01:27:19 -0500 baroutsimmons http://forums.streamingmedia.com/thread-10796.html http://bit.ly/cVTrIw

]]> http://bit.ly/cVTrIw

]]> <![CDATA[RE: HD/SD Live Flash/Windows Media multicast streaming]]> http://forums.streamingmedia.com/thread-10795.html Wed, 03 Mar 2010 05:02:29 -0500 Dave http://forums.streamingmedia.com/thread-10795.html

]]>

]]> <![CDATA[HD/SD Live Flash/Windows Media multicast streaming]]> http://forums.streamingmedia.com/thread-10795.html Tue, 02 Mar 2010 11:53:29 -0500 pmark http://forums.streamingmedia.com/thread-10795.html
For some reason it seems everything now is usercast dependant. There's streaming portals like ustream.com, livestream.com etc., but it seems they're all based on CDN and usercast - which generates craploads of bandwidth usage at just a couple hundred of people watching 24/7 - instead of anything multicast based, they charge a lot pers just a couple thousand connections allowed, couple thousand 'viewing hours' per month... very limiting. I want to be able to just send out a single SD/HD stream 24/7 and have people tuning in pick it up, instead of everyone essentially leeching the stream from the servers or CDN.
There are companies which offer streaming solutions, but it seems they're all CDN-based. I understand CDN is great for VoD and video-heavy portals, but I don't need VoD -- I want streaming, just like traditional television broadcast, except on the internet. Ofcourse streaming is also possible over CDN, but like I wrote before, it generates so much bandwidth usage and in turn costs like hell, it's kind of pointless... what's the point of having 200 people tune in, when they will use up all the allocated gigabytes per month in a few days, and you'll be charged a 5000USD or so?...

Is it just me, or was multicast abandoned for some reason? Why are streaming solutions for Live broadcasts usercast-driven when it generates such high costs and burden? Why not just stream a single signal?
Is IPTV/TV over IP a multicast solution by nature? Are there any multicast solutions that could carry HD 720p live video and be easy to access for end-user?...

Appretiate any helps and tips.
P.

]]>
For some reason it seems everything now is usercast dependant. There's streaming portals like ustream.com, livestream.com etc., but it seems they're all based on CDN and usercast - which generates craploads of bandwidth usage at just a couple hundred of people watching 24/7 - instead of anything multicast based, they charge a lot pers just a couple thousand connections allowed, couple thousand 'viewing hours' per month... very limiting. I want to be able to just send out a single SD/HD stream 24/7 and have people tuning in pick it up, instead of everyone essentially leeching the stream from the servers or CDN.
There are companies which offer streaming solutions, but it seems they're all CDN-based. I understand CDN is great for VoD and video-heavy portals, but I don't need VoD -- I want streaming, just like traditional television broadcast, except on the internet. Ofcourse streaming is also possible over CDN, but like I wrote before, it generates so much bandwidth usage and in turn costs like hell, it's kind of pointless... what's the point of having 200 people tune in, when they will use up all the allocated gigabytes per month in a few days, and you'll be charged a 5000USD or so?...

Is it just me, or was multicast abandoned for some reason? Why are streaming solutions for Live broadcasts usercast-driven when it generates such high costs and burden? Why not just stream a single signal?
Is IPTV/TV over IP a multicast solution by nature? Are there any multicast solutions that could carry HD 720p live video and be easy to access for end-user?...

Appretiate any helps and tips.
P.

]]> <![CDATA[RE: HD/SD Live Flash/Windows Media multicast streaming]]> http://forums.streamingmedia.com/thread-10795.html Wed, 03 Mar 2010 10:15:16 -0500 pmark http://forums.streamingmedia.com/thread-10795.html
I read some more after posting here and it seems that's the sad truth. I was pretty shocked to find out that streaming isn't really what I was convinced it was -- I was sure it allows to send out just a single stream which can be recieved by anyone who wants to 'listen' to it, but apparently, this is only possible on the protocol level, where specific settings must be applied to the network (thus allowing multicasting on local LANs, etc., but making it impossible over the Internet).

I'm slowly coming to terms that any sort of broadcast on the internet is pretty much the same as having people download it from you. Which I dare to think, is pretty ridiculous, considering the crazy amounts of bandwidth usage it generates. No wonder no television wants to stream their channels. I used to be under impression that while VoD is a great strain considering bandwidth usage, televisions should stick to streaming, which I thought would require just a single transfer on their side. Now I realise VoD is what media providers stick to becouse it's actually cheaper than a 24/7 stream.

Somebody should try to work on a technology that would make multicast streaming over HTTP (for widespread access) possible. That would be one heck of a breakthrough! Smile

]]>
I read some more after posting here and it seems that's the sad truth. I was pretty shocked to find out that streaming isn't really what I was convinced it was -- I was sure it allows to send out just a single stream which can be recieved by anyone who wants to 'listen' to it, but apparently, this is only possible on the protocol level, where specific settings must be applied to the network (thus allowing multicasting on local LANs, etc., but making it impossible over the Internet).

I'm slowly coming to terms that any sort of broadcast on the internet is pretty much the same as having people download it from you. Which I dare to think, is pretty ridiculous, considering the crazy amounts of bandwidth usage it generates. No wonder no television wants to stream their channels. I used to be under impression that while VoD is a great strain considering bandwidth usage, televisions should stick to streaming, which I thought would require just a single transfer on their side. Now I realise VoD is what media providers stick to becouse it's actually cheaper than a 24/7 stream.

Somebody should try to work on a technology that would make multicast streaming over HTTP (for widespread access) possible. That would be one heck of a breakthrough! Smile

]]> <![CDATA[RE: Switching between multiple Webcams for Live Streaming]]> http://forums.streamingmedia.com/thread-10793.html Sat, 27 Feb 2010 15:21:16 -0500 Dave http://forums.streamingmedia.com/thread-10793.html
There is an example of this in William Sanders' eBook 'Learning Flash Media Server 3'

Also perhaps check the:
"The following example shows how to use Stream.play() as a hub to switch between live streams and recorded streams" example at:
http://help.adobe.com/en_US/FlashMediaSe...fc95e-7f36

Dave

]]>
There is an example of this in William Sanders' eBook 'Learning Flash Media Server 3'

Also perhaps check the:
"The following example shows how to use Stream.play() as a hub to switch between live streams and recorded streams" example at:
http://help.adobe.com/en_US/FlashMediaSe...fc95e-7f36

Dave

]]> <![CDATA[RE: Switching between multiple Webcams for Live Streaming]]> http://forums.streamingmedia.com/thread-10793.html Sun, 28 Feb 2010 07:49:50 -0500 Dave http://forums.streamingmedia.com/thread-10793.html
Have you tried Vladimir Hmelyoff's VH Multicam Studio ?

Dave

]]>
Have you tried Vladimir Hmelyoff's VH Multicam Studio ?

Dave

]]> <![CDATA[RE: Switching between multiple Webcams for Live Streaming]]> http://forums.streamingmedia.com/thread-10793.html Sun, 28 Feb 2010 04:41:59 -0500 dirtysock http://forums.streamingmedia.com/thread-10793.html But this would mean that I had to start an instance of AME for every single webcam. That would create a lot of processor load as well as bandwith throttle for my internet connection. I am connected to the server by dsl, because I am streaming from my home. My bandwith is only 1Mbit/Up.

The second problem would be, that actually I am using ustream for publishing.
There I can't write scripts or programm any actionscript serverwise.

I can't believe that there is no programm for simple switching usb sources.

In the meantime I found an indirect solution with Adobe Visual Communicator 3. This programm is able to create a show by dropping diffrent sources, either usb or anything else, into a timeline and even stream it to
Flash Media Servers like ustream.

But its kinda ugly and not very adjustable codec wise. You can only choose from predefined presets.

Feeding diffrent sources to Adobe Flash Media Live Encoder would be way simpler and better......

]]> But this would mean that I had to start an instance of AME for every single webcam. That would create a lot of processor load as well as bandwith throttle for my internet connection. I am connected to the server by dsl, because I am streaming from my home. My bandwith is only 1Mbit/Up.

The second problem would be, that actually I am using ustream for publishing.
There I can't write scripts or programm any actionscript serverwise.

I can't believe that there is no programm for simple switching usb sources.

In the meantime I found an indirect solution with Adobe Visual Communicator 3. This programm is able to create a show by dropping diffrent sources, either usb or anything else, into a timeline and even stream it to
Flash Media Servers like ustream.

But its kinda ugly and not very adjustable codec wise. You can only choose from predefined presets.

Feeding diffrent sources to Adobe Flash Media Live Encoder would be way simpler and better......

]]> <![CDATA[RE: Switching between multiple Webcams for Live Streaming]]> http://forums.streamingmedia.com/thread-10793.html Sun, 28 Feb 2010 09:36:38 -0500 dirtysock http://forums.streamingmedia.com/thread-10793.html
unfortunately it's not longer available on the website, because they are working on a commercial version.

From what I can see it would have been the exact solution to my problem.

I am trying to find the old version somewhere..

thanx for the tip

Oliver

mhm.
I found the old version and tried it.
But I don't find a time controlled switching function.
Even if it says there are transitions......

If you are knowing the program, can you tell me how to do thr switching?

]]>
unfortunately it's not longer available on the website, because they are working on a commercial version.

From what I can see it would have been the exact solution to my problem.

I am trying to find the old version somewhere..

thanx for the tip

Oliver

]]> <![CDATA[Switching between multiple Webcams for Live Streaming]]> http://forums.streamingmedia.com/thread-10793.html Sat, 27 Feb 2010 14:27:14 -0500 dirtysock http://forums.streamingmedia.com/thread-10793.html
I am trying to create a livestream with Adobes Flash Media Live Encoder.
But I want to use multiple Webcams to have different viewing angles.

So I need a software that literally collects the signals of all connected cams, simulating a single cam, and switches between their signals timer controlled.

I found some programms which are emulating a webcam. In these you are able to mix a webcam, video and stuff for sending/streaming but none of them could switch between multiple webcam signals.

Any Ideas?

Regards

Oliver

]]>
I am trying to create a livestream with Adobes Flash Media Live Encoder.
But I want to use multiple Webcams to have different viewing angles.

So I need a software that literally collects the signals of all connected cams, simulating a single cam, and switches between their signals timer controlled.

I found some programms which are emulating a webcam. In these you are able to mix a webcam, video and stuff for sending/streaming but none of them could switch between multiple webcam signals.

Any Ideas?

Regards

Oliver

]]> <![CDATA[mp3 won't serve - WMS]]> http://forums.streamingmedia.com/thread-10790.html Thu, 25 Feb 2010 19:12:10 -0500 abahmer http://forums.streamingmedia.com/thread-10790.html
I have successfully tested streaming on-demand videos on my server. These come from a location different than the default wmpub folders set up upon install. Their location is another local hard drive with proper permissions (at least evidenced by the videos). I cannot get mp3s to play from this same folder.

I have copied files from our still-working Win 2003 Server, WMS, so I know the files are good (single bitrate). I checked the server-level properties to confirm that the WMS MP3 Media Parser was enabled. Both WMS HTTP & RTSP Server Control Protocols are enabled at the server. I also built an appropriate playlist on the new server with accurate file paths. Playlist transformation is enabled for that publishing point.

Here's links to my two servers:

Working
rtsp://media.ewc.wy.edu/Stock_Constitution

Not working
rtsp://testbox.ewc.wy.edu/Constitution

WMP responds that it can't connect to the server, however the server logs at that moment state:

This is a different WMP error message than I had received before - which was that it couldn't find the file (consistent with logs). Now it claims it can't even connect.

The other thing I have done is to test the source from the publishing point itself there on the server. Again, I get this same set of messages and log entries. If it's a firewall issue, I would think the server source playback would work, but it doesn't. This points me back to folder permissions or some other setup element that I have missed between the two servers.

It's crazy and I'm at a loss.

]]>
I have successfully tested streaming on-demand videos on my server. These come from a location different than the default wmpub folders set up upon install. Their location is another local hard drive with proper permissions (at least evidenced by the videos). I cannot get mp3s to play from this same folder.

I have copied files from our still-working Win 2003 Server, WMS, so I know the files are good (single bitrate). I checked the server-level properties to confirm that the WMS MP3 Media Parser was enabled. Both WMS HTTP & RTSP Server Control Protocols are enabled at the server. I also built an appropriate playlist on the new server with accurate file paths. Playlist transformation is enabled for that publishing point.

Here's links to my two servers:

Working
rtsp://media.ewc.wy.edu/Stock_Constitution

Not working
rtsp://testbox.ewc.wy.edu/Constitution

WMP responds that it can't connect to the server, however the server logs at that moment state:

]]> <![CDATA[Campus TV Distribution over IP]]> http://forums.streamingmedia.com/thread-10789.html Wed, 24 Feb 2010 17:17:56 -0500 chiefgguy http://forums.streamingmedia.com/thread-10789.html
I would like to solicit some feedback from others that have done something similar and can share their experience (good or bad).

While we have several use cases defined, i would like to hear from the community any features you feel should be part of such a solution.

Thanks,
Andy

]]>
I would like to solicit some feedback from others that have done something similar and can share their experience (good or bad).

While we have several use cases defined, i would like to hear from the community any features you feel should be part of such a solution.

Thanks,
Andy

]]> <![CDATA[RE: Campus TV Distribution over IP]]> http://forums.streamingmedia.com/thread-10789.html Fri, 26 Feb 2010 04:15:25 -0500 james121 http://forums.streamingmedia.com/thread-10789.html

]]>

]]> <![CDATA[RE: Folder Permissions?]]> http://forums.streamingmedia.com/thread-10788.html Wed, 24 Feb 2010 14:06:48 -0500 Dave http://forums.streamingmedia.com/thread-10788.html
Is this 'another drive' a local drive or a network drive ?

What authentication method are you using on the server / publishing point ? If it's WMS Anonymous User, then the anonymous user account will require access.

Does the publishing point you are using in this test point to the new location ?

Is WMS still running under the Network Services account (default) ?

Dave

]]>
Is this 'another drive' a local drive or a network drive ?

What authentication method are you using on the server / publishing point ? If it's WMS Anonymous User, then the anonymous user account will require access.

Does the publishing point you are using in this test point to the new location ?

Is WMS still running under the Network Services account (default) ?

Dave

]]> <![CDATA[Folder Permissions?]]> http://forums.streamingmedia.com/thread-10788.html Wed, 24 Feb 2010 12:53:31 -0500 abahmer http://forums.streamingmedia.com/thread-10788.html WMS

I have made my wms_root folder on another drive. I have examined the permissions on the original wms_root folder and set the permissions for this new folder to be the same. However, when trying to test playback of a publishing point, WMS complains (and logs) that it can't find the file.

I'm assuming this is a permissions problem.

I've tested a publishing point that uses the default files from the default folder. That publishing point works just fine.

Reading the MS help indicates that the Network Service user needs certain rights, which I have set (the same as the default folder).

Thanks!

]]> WMS

I have made my wms_root folder on another drive. I have examined the permissions on the original wms_root folder and set the permissions for this new folder to be the same. However, when trying to test playback of a publishing point, WMS complains (and logs) that it can't find the file.

I'm assuming this is a permissions problem.

I've tested a publishing point that uses the default files from the default folder. That publishing point works just fine.

Reading the MS help indicates that the Network Service user needs certain rights, which I have set (the same as the default folder).

Thanks!

]]> <![CDATA[RE: Folder Permissions?]]> http://forums.streamingmedia.com/thread-10788.html Thu, 25 Feb 2010 13:26:35 -0500 abahmer http://forums.streamingmedia.com/thread-10788.html
I have since decided that one problem was that I was testing an .mp3 file and also a playlist of mp3s. That's for another posting!

Using a publishing point that actually displays a video has now worked with no further adjustments to security/permissions than I mentioned in my initial posting.

For full clarification, these are the settings I used:

[Drive]
SYSTEM and Administrators - Folder/Sub-folder/file - Full Control
Creator Owner - Sub-folder/file - Full Control
Users - Folder/Sub-folder/file - Read
- Folder/Sub-folder - Create folders
- File - Create files

[wmpub or equiv]
SYSTEM and Admins - Folder - full less delete, change perm, take owner
- Sub-folder/file - Full Control
Creator Owner - Sub-folder/file - Full Control
Users - Folder/Sub-folder/file - Read

[wm_root or equiv]
SYSTEM, Admins & NETWORK SERVICE - Folder - full less delete, change perm, take owner
- Sub-folder/file - Full Control
Creator Owner - Sub-folder/file - Full Control
Users - Folder/Sub-folder/file - Read

]]>
I have since decided that one problem was that I was testing an .mp3 file and also a playlist of mp3s. That's for another posting!

Using a publishing point that actually displays a video has now worked with no further adjustments to security/permissions than I mentioned in my initial posting.

For full clarification, these are the settings I used:

[Drive]
SYSTEM and Administrators - Folder/Sub-folder/file - Full Control
Creator Owner - Sub-folder/file - Full Control
Users - Folder/Sub-folder/file - Read
- Folder/Sub-folder - Create folders
- File - Create files

[wmpub or equiv]
SYSTEM and Admins - Folder - full less delete, change perm, take owner
- Sub-folder/file - Full Control
Creator Owner - Sub-folder/file - Full Control
Users - Folder/Sub-folder/file - Read

[wm_root or equiv]
SYSTEM, Admins & NETWORK SERVICE - Folder - full less delete, change perm, take owner
- Sub-folder/file - Full Control
Creator Owner - Sub-folder/file - Full Control
Users - Folder/Sub-folder/file - Read

]]>