MPEG Encoding Motion problems

[shiloh]

I have been attempting to generate a VCD/SVCD
(have tried both) of video captured to AVI from an
analog source. I have been capturing in VirtualDUB
using the PICVideo MJPEG codec set at the highest
quality.

The AVI's turn out fine but when I use TMPGEnc to
do the MPEG encoding anything in motion in the resulting
file gets grainy or "blocky" (not sure what the proper
term would be). The faster the motion, the worse the picture.

I've tried capturing at the standard resolutions for
VCD/SVCD as well as capturing at higher resolutions and
resizing during encoding; playing with the Motion Search Precision settings; and playing with the bitrates. Does
anyone have any suggestions?

[buzz10]

The best luck I've had so far has been to make XVCD's using the following settings in TMPGenc: MPEG-1 352x240, 29.97fps, CBR-2375kbps, 224kbps audio, Motion Search-Highest Quality, Use Floating Point DCT, Uncheck the box that says No Motion Search for still picture, Soften Block Noise (35 & 35), and use the Toolame external audio encoder.
Of course the bit-rates you choose will depend upon how many CD's you plan to use. But keep in mind that if your bit-rate is too low, it will not look good, and if it is too high, your DVD player might not be able to handle it.

I have also experimented with SVCD's and found that still scenes look nice, but any motion scenes just look like crap. So I'm sticking with XVCD.