Start playing a video not fully saved yet

Hello,
- what I want to do: Basically, Broadcast a video from a server computer to client computers using JMF as a player.
I tried transmitting the video thought RTP
Problem: the codec needs random access to Media so format not supported or not suitable player blah blah
Solution?_: Should I try to reencode it in supported format and do it again?
I tried sending the video by like 500b packages and start playing it before the file is completed (youtube like)
Problem: Always the same error
Failed to configure: com.sun.media.PlaybackEngine@22ab57
IO exception: BasicPullParser: readBytes(): Reached end of stream while trying to read 4 bytes
Error: Unable to realize com.sun.media.PlaybackEngine@22ab57
FATAL ERROR: Failed to realize: failed to parse the input media.
Exception in thread "JMF thread: SendEventQueue: com.sun.media.content.unknown.Handler" java.lang.Error: Failed to realize: failed to parse the input media.
Solution?_: no clue, I tried quickly to create my player with Manager.createRealizedPlayer(new MediaLocator(Path)); but no success
I don't really know what to do now, does anyone have any clue to help me find a solution?

I tried transmitting the video thought RTP
Problem: the codec needs random access to Media so format not supported or not suitable player blah blah
Solution?_: Should I try to reencode it in supported format and do it again?Ummmm, you shouldn't be receiving that error if the server is loading a video file from disk... but you might look into using a simplier format, RGB-encoded AVIs (for instance)...
I tried sending the video by like 500b packages and start playing it before the file is completed (youtube like)
Problem: Always the same error
Failed to configure: com.sun.media.PlaybackEngine@22ab57
IO exception: BasicPullParser: readBytes(): Reached end of stream while trying to read 4 bytesThat suggests you're not sending the bytes fast enough... Perhaps increasing your package sizes will help with that...
You should DEFINATELY be using a PushBuffer instead of a PullBuffer, because receiving a stream is a push event, not a pull event. Making it a PushBuffer will stop that error from occuring (that error says "I looked for data and there was none", which cannot occur if the Player only looks for data when its DataSource tells it it has data...)

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Start playing a video not fully saved yet

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