the original source was 23.976

I encoded it to mpeg2 with the pulldown

and..I dunno why but

after the multiplex, the audio was out of sync

there WAS the error about underflow..but I ignored this..

I did the setting correctly.

and I used 'pad audio'

does anyone knows how to fix this?

I erased the original source..but I'd like to know what was wrong..

Change the pulldown parameter of bbmpeg from "automatic" to "2:3 pulldown" (or 3:2, I do not remember wich one is correct).

I encoded to mpeg2...

but Im using vcd to multiplex I guess?

and I can't move the pulldown section..its locked.. ?

Oh ! If you encode to VCD it's normal that the line is grayed.
You have to multiplex as SVCD for this

thnx...

other settings are same right?

I'll try that

Not really but when you will select "SVCD" all parameters will change to their correct (default) values. Just let them.