i'll be more specific. i have and mkv that contains h264 video and ac3 audio. when i follow your instructions and save as avi it does so. when i play it in vlc player it plays fine (as does the mkv file) but it i get only audio in windows media player. GSpot codec reader will not read it either. nor does my standalone dvd player that plays avi's.

i've tried changing the settings in mkvmerge in the "Format Specific Options" and tried all the 4cc options, but still no luck.

i just want to be able to convert it to watch it in my standalone dvd player that plays avi's.

i've tried converting with convertxtodvd and other programs, but i get audio sync problems.

any advice much appreciated.