DivX to MPEG Problem

[Kika]

I have not worked with DivX or XVid for a long time. So i discovered this just now.

A workmade gave me a DivX 5-Video (an Anime) for Reencoding to SVCD. I can watch and encode the Video and Audio, no problem so far. But what i noticed is, that the Videoquality is different when opening the DivX with VirtualDubMOD or AVISynth. I looks more softened than in MediaPlayer Classic. In some Scenens, i got Block color distortions, but only in VirtualDubMOD, AVISynth or TMPGEnc, not while watching the Video.
I have also tried ffdshow and XVid for Decoding, same Effect. Any Idea what's happening?

Regards,
Kika

[ppera2]

Problem by reencoding is lack of postprocessing.
To ensure it, you need to use instead AviSource command DirectShowSource(....) in Avisynth. Then you will have all set postprocessing (if ffdshow is in tray, you may change them by reencode). Bad thing is that seeking in Virtual Dub is very slow then, but you don't need it by reencode itself.