[MPlayer-users] mencoder and playback (speed) problems

[bruma]

hi,

I recently start using mencoder and run into problem in output file. If
I encode input file mvi_0280.avi with -nosound option:

$mencoder  mvi_0280.avi -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1000
-nosound -o out_nosound.avi
playback speed of out_nosound.avi is Ok

but, if I encode it with -oac pcm, -oac copy or -oac lavc option:
$mencoder  mvi_0280.avi -oac pcm -ovc copy -lavcopts
codec=mpeg4:vbitrate=1000   -o out_copy.avi
playback speed of out_copy.avi is like fast forward.

Am I doing something wrong when encoding?

regards bruma