First excuse me for my very bad English. It's a long time ago when I went to school...
I have a problem with the latest XBMC-Versions if I try to stream my records of the German online-tv-recorder www.save.tv.
Here is a save-tv-script which allows you to stream your recordings direkt to your Xbox or you can download the files and save them on your xbox-hdd: http://www.xbmc.de/xbmc/download.php?view.206 (you need an account at save-tv - it's possible to register a free-account).
With an older build of XBMC streaming works. I use the XBMC Version: pre-2.1 (Compiled: Feb 15 2007) and the MPlayer dev-CVS-070107-02:50-3.4.2 (Jan 7 2007 - 02:50:47)
Certainly the forward/rewind funktion is not very good with a DSL-2000-Internet-Connection, but it works (I also have this old build on my xbox and it's still running)
Any later builds doesn't support the forward/rewind funktion at online streaming and I don't know why. Currently I have the XMBC pre-2.1 (Compiled: Dec 17 2007) with the MPlayer XBMC-SVN-r10070 (Autg 24 2007) running. All settings are the same, the script is the same but it doesn't work (only at online-streaming!).
My Question is now: did anyone have similar problems with the forward/rewind funktion at online-streaming? Is this a problem of the MPlayer-Version or of the XBMC-build? Is it possible to downgrade the Mplayer-Version and use the latest XBMC with the newest 360-Skin?