Hmm... now thats a new one. I would suggest you re-install TMPGEnc again to start with.
Waht are you converting with TMPGEnc, a d2v from DVD2AVI or an AVI or what,? What version of TMPGEnc are you using?
Bare with me here, I've tried with three diffrent tutorials, DVD2SVCD, DVD2VCD and DVD2VDC (alternetive way ), after trying each one twice and formating my machine between each diffrent try ( just incase I leave something behind )I'm still just about where I was at the start, I've tried and given up before but I'm going to do it this time or bust.
I'm ripping Tomb Raider and Planet of the Apes I've got all the stuff you said to get, ripping goes fine, I've just got a copy of TMPGEnc 2.58 but was going with 2.54 before I've just thought of something, my HD is split and wonder if this could be the cause.
Well off I go again, I just ripped TB again, so I'll start over and go with DVD2VDC. Hopefully you'll stick with me.