Converting MEPG1 to MPEG-1 VideoCD.... Big audio sync proble

[SofaKing]

Ok, sorry for posting another topic but I'm completely running out of ideas. I have all the Futurama episodes in mpeg format.. (not sure on other specifics... how can I find out the frame rate its encoded in and resolution?)

When I go to burn the mpeg's using whatever software (nero, easy cd creator, etc) it says its not in standard mpeg-1 vcd format, so I tried the following:

1) Using TMPGEnc SIMPLE MULTIPLEX to MPEG-1 VideoCD.
2) De-multiplex, then re-multiplex (TMPGEnc) to MPEG-1 VideoCD.
3) De-multiplex, RE-ENCODE (TMPGEnc) using the VideoCD (NTSC) template.
4) De-multiplex (TMPGEnc), re-multiplex using bbMPEG.

Now they play perfectly in-sync in their original format, but everytime I try to convert them (using any of the methods mentioned above) the audio gets out of sync sometime after the first commercial break (~7-8 minutes).

If anybody has any other ideas what-so-ever I would be extremely grateful.

Thanks again.

[SofaKing]

*bump*