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Questions from the WWUG

Windows streaming media files and Darwin server questions By Stephen Schleicher
This week we return to the Digital WebCast WWUG where several questions have popped up about multicasting and Windows Media files.

The first comes from Dave who is curious about Multicasting with a Linux Darwin server.


"I will be installing darwin on a linux RedHat 7.2 server this weekend. I was reading the pdf for darwin and it discussed setting up playlists for station broadcasts. I like that idea. my question is, is that a true multicast where the bandwidth is set to say 100k and as many people a you want can connect but only use 100k of total bandwidth? Or will each connection use 100k of my bandwidth? IE. I have a T-1. Does that mean that I can have up to 15 people connected to that playlist before running out of bw or does that mean that I can have 15 100k streams and connect as many to each as they want? "

For anyone who is thinking about streaming a radio station over the Net, you should really check out the Digital WebCast Internet Radio Journal which we put together a little over a year ago to address some of these issues. For Dave I would specifically point to the Journal entry entitled "Time to do the Math", which can be accessed here.

If you have further comments or suggestions for Dave, or maybe even some tips on how he can get Darwin to work perfectly with his system, post your comments here.

Our next questions is a follow up from one of our other "From the WWUG" installments asking about Windows Streaming Media Files. Sankaran asks several questions in one in hopes someone can help.

"Regarding Windows Media Server and Windows Media Player


1. Is it possible to develop custom made plug-in for Windows Media Server (DICOM to ASF conversion) or any one among Quick Time and Real Player

2. Is it feasible to have architecture with Different server (Quick Time) with Windows Media Player client?

3. Does the Windows Media Server can stream online converted ASF formatted data, instead of keeping a local copy of the whole file as a separate ASF file?

4. Suppose, DICOM file is converted to .ASF format. Does the Windows Media Player can play the .ASF file without any conversion? This means does it require any other plug in to convert the .ASF file to DICOM again for playing?

II. General

1. Is it possible to write our own (DICOM supported) plug-in for Quick Time player to play DICOM Images?

2. What are the file formats supported by the PACS archiever?

3. How a file is retrieved from PACS archiever? That is will it take a single file a whole or part-by-part reading of file? "


If you can help Sakaran out, you can post your comments, suggestions, or answers here.

Next week, we'll mix it up again and pull more quesions from related WWUGs. Until then, if you have any questions about webcasting or streaming media, be sure to visit the Digital WebCast WWUG. Also be sure to check out all of the forums available on the World Wide Users Group.


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Stephen Schleicher has crossed the country several times over the last couple of years going from Kansas to Atlanta , Georgia, and Southern California. In his time traveling, he has worked as an editor, graphic designer, videographer, director, and producer on a variety of video productions ranging from small internal pieces, to large multimedia
corporate events.

Currently, Stephen shares his knowledge with students at Fort Hays State University who are studying media and web development in the Information Networking and Telecommunications department. When he is not shaping the minds of university students, Stephen continues to work on video and independent projects for State and local agencies and organizations as well as his own ongoing works.

He is also a regular contributor to Digital Producer, Creative Mac, Digital Webcast, Digital Animators, and the DV Format websites, part of the Digital Media Online network of communities (www.digitalmedianet.com), where he writes about the latest technologies, and gives tips and tricks on everything from Adobe After Effects, to Appleā??s Final Cut Pro, LightWave 3D, to shooting and lighting video.

He has a Masters Degree in Communication from Fort Hays State University in Hays, Kansas. As a forward thinker, he wrote his Thesis on how Information Islands and e-commerce would play a major role in keeping smaller communities alive. This of course was when 28.8 dialup was king and people hadnā??t even invented the word e-commerce.

And, he spends what little free time he has biking, reading, traveling around the country, and contemplating the future of digital video and its impact on our culture. You can reach him at schleicher@mindspring.com

Related Keywords:Digital WebCast, wwug, world wide users group, questions, windows streaming media files, stephen schleicher, PACS, darwin, linux, streaming media, streaming video, streaming audio, internet radio

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