Os pongo lo que vi en otro foro, en mi HD me funciono de maravilla...
RMVB is one excellent video format, but it is not open video format, many software and devices can’t support RMVB format including our windows mobiles. But now its possible to run RMVB files on the windows media player. All you have to do is download & install
RMVB Plugin (812).
Install Instructions:
Extract the zip file, you will get two folders: 1 and 2.
Copy the four files in folder 1 named:
amc_video_renderer.ax
RADecoderFilter.dll
RealParserFilter.dll
RVDecoderFilter.dll
into “Windows” folder on your phone.
Import the rmvb.reg (in folder 1 as well) into registry then do a soft-rest.
After the soft-rest, install the cab file called M8_RMVB_Feit.cab in folder 2, then do a soft-rest again. After that windows media player will be able to play rmvb and rm files!
Tested on HTC Touch HD with LIA 13.1 WM 6.5 ROM, tried a 100mb RV40 file with 848*480 res. 23.98fps 512kbps and AAC2 44.1khz audio. It played ok, a bit lag but watchable, I assume it will be very fast with a lower res rmvb (640*480) and with a wm6.1 ROM. Drag works really fast, the video will jump to the time point almost immediately.
http://www.wmskins.com/blog/wp-conte...load.php?id=13