All my converted video's SVCD (with different settings) have an increasing difference in time between audio and video. The audio signal seems to be running faster than the video signal. At the end of a 18min. video the timedifference is about 10seconds.

What goes wrong?????????????????????

I,m using:
* Pentium III, 1Ghz
* 256Mb Sdram
* firewirecard (Dynalink)
* 40Gb harddisk NTFS-format 7200rpm
* Win2000, premiere 6.0, avisynth, TMPGenc 12f.