[MPlayer-users] missing audio under win98 with mencoder encoded files

[Deepak]

i encoded some mpeg videos to divx using mencoder with libavcodec mpeg4 
encoding for the video stream and streamcopy for the audio stream:

mencoder -ovc lavc -lavcopts=mpeg4 -oac copy -o movie.avi movie.mpg

the avi plays back perfectly in linux, using either mplayer or xine but 
under windows, any media player (wmp, divx playa, sasami) can't play the 
audio stream. 

what is the problem? do i have to encode it in multiple passes? (takes a 
hell of a lot of time on my system :(

as an aside.. how do i copy a vcd directly to a file. something like
mencoder -vcd 2 -ovc copy -oac copy -o movie.dat
copies the VCD to disk but without an index. i have to use -forceidx 
everytime to play it. also, i have to know which/how many tracks are 
present on the VCD (for the -vcd x) any better way to do this??

thanx 

Antrix Angler