InfoWorld's Jon Udell has been investigating this topic:
I'll be darned if I can come up with an equivalent method for an rtsp: URL that plays a QuickTime stream, or for an mms: URL that plays a Windows Media stream. I found some documentation for QuickTime starttime/endtime parameters but, while these are supposed to work with links as well as in EMBED tags, I can't so far get that to happen. I've also found documentation for the SMIL clipBegin/clipEnd syntax, but can't seem to get that to work with any of the current players. And in any case, it would seem to require writing a metafile.
As Jon says, the state of the streaming art does resemble a train wreck, even to veterans of format wars. To help the situation, I've created a stripped-down version of RPXP that runs as a web service to clip audio/video for all three major players: RealPlayer, Quicktime and Windows Media. Details to follow, but you can find instructions here.
Posted by dotpeople at December 10, 2003 11:51 PM