In the Xbox Version of Xbox Media Centre (XBMC) DVR-MS playback worked perfectly in the builds compiled around May 2007, however after that I’m guessing the mplayer.dll was updated. In later XBMC builds when fast forwarding or skipping through a video it just skipped to the end of the video.
DVR-MS playback is a nice addition in XBMC for myself as i can playback TV recorded on my PC with Windows Media Center.
Luckily this can easily be fixed by replacing the mplayer.dll in XBMC/system/players/mplayer/ with the one included in this post.
That’s it, the fix is as simple as that, I can confirm this works perfect on the XBMC for XBOX 8.10 codenamed Atlantis build (T3CH XBMC 2008-11-13 8.10 PROPER)
If you want to help try get this fixed in future builds reply to my topic on the XBMC Forums and to this bug report here, hopefully one of the developers will take note and working DVR-MS playback can be implemented in later builds.
The working mplayer.dll can be downloaded from Digiex.