mencoder to DVD --> AVI (see my options)

[graysky]

I'm currently using to encode MPEG2 (720x480) from DVD --> xvid (512x384) on win32 using mencoder 1.0pre7.

Here is my batch file:

mencoder -ovc xvid -vf scale=512:384 -sws 9 -xvidencopts pass=1 -nosound -o test-1.avi test.mpg
mencoder -ovc xvid -vf scale=512:384 -sws 9 -xvidencopts bitrate=1100:pass=2 -oac mp3lame  -lameopts fast:preset=standard -o test-final.avi test.mpg

1. Am I missing any options?

Secondly, when I use that script I do get a file out that plays under Windows (mplayerc) just fine; however, one problem is that the resulting file has problems in virtual dub and virtualdub mod giving an error, "Warning: nothing to output bframe decoder lag."

Also, if I demux the mp3 file and analyze it with mrquestionman or encspot, I don't see the correct results. Mrquestionman usually shows the switches one used to encode (in this case --alt-preset fast standard). Additionally, the vbrheader is all messed up. The bitrates usually jump between 128,224,256 etc. in normal files. The demuxed file just hovers around 190 jumping by 1 kbps or so.

Can anyone suggestion what I'm doing wrong?

[celtic_druid]

The bframe decoder lag is because the defaults for XviD in mencoder are 2 bframes and no packed bitstream. If you don't want the lag, enabled packed bitstream or disable bframes.