Hi, a new version of this filter (even if MPC support 2 audio stream :) ) it's now open source. changelog : ----------- Windows Media Player 9 supported. Audio stream language name can be stored and retrieved in the AVI file itself (in LIST INFO chunk). Win Language Code (LCID) supported. If specified (Audio_def=0 or ICAS set to 0), auto-activation of the audio stream that matchs with the language of the machine where's the movie is playing. Less CPU usage (audio decoders of unselected streams are stopped). Better interoperability with Gabest's DVobSub. Tested with WMP6, WMP7, WMP9, RealOne Player, Winamp (with Vidamp), latest ZoomPlayer, latest Sasami2K, latest BSPlayer, latest PowerDivX NextGen, latest Gabest's MPC. ------------- however it seems to me there is a conflict if u use Reclock & streamswitcher. perhaps someone can confirm this ? and anyone know how to change the LIST chunk information ? thank u :) Bye.