TMPGEnc losing last 3 sec on DivX-to-NTSC SVCD conversion

[netgeek1]

TIA for any help.

Here's the situation. I'm trying to convert 2 sequential 20fps DivX's to 29.97fps SVCD NTSC using TMPGEnc. The encoding works perfectly until the last 3 seconds, then TMPGEnc crashes to the desktop. I have tried frameserving from VirtualDub v1.4.7 with no real success, TMPGEnc crashes to desktop @ last 2 seconds. I have tried numerous different versions of TMPGEnc. There are no problems converting any other DivX framerates, I have successfully done 29.97fps and 25fps conversions.

--- Edited to remove VDub error scan question

Operating System: XP
CPU Speed: AMD XP 1800
Harddrive space: 80GB
RAM Memory: 512MB
Video Card: Radeon 7200
Motherboard: Soyo Dragon Ultra
CD-ROM: Ricoh DVD/CDRW Combo
DVD-ROM: Ricoh DVD/CDRW Combo
CD Writer: Ricoh DVD/CDRW Combo
DVD Writer: N/A

Netgeek1

[netgeek1]

Bueller? ... Bueller?

Have just completed a scan using VDub for bad frames... None detected.