Over the last months, I keep reading emails and posts, for an aliasing and a distortion effect when you backup a DVD movie to CVD. Honestly, I never saw it at my encodings, except with some low pic mjpeg grabbs (17 or less set), which looked like a pixel distortion all over picture, but again, nothing like that aliasing in the picture some users keep reporting.
After some tests and many user reports, for a while looked like that this was a greater issue to NTSC backups than PAL ones.

The past 2 weeks, I had a good conversation with other enthusiasts of our hobby, for this matter. All of them was CCE users from all over the world and most of them used exclusivly DVD2SVCD to back up DVDs.
I use mostly TMPGenc plus with my DVB source to encode to CVD/SVCD and sometimes xSVCD, since I don't buy much DVDs and if I do, I don't back up them (I wait to back up them on DVD-Rs, next year, which I planning to buy my own 4X dvd recorder). Anyway, after suggestions, I backed up to CVD my spiderman R2 DVD, using DVD2SVCD and an old demo of CCE 2.5 it happens to own for a long time now (since spain, if you know what I mean ). I encoded the movie to CVD with 3 pass VBR, which is the most common for quality freaks.

For the very first time, I saw to the resulting CVD that aliasing some users discrube. Terrible...

Just to be sure that wasn't the movie, I re-encode my DVD with the combination of DVD2AVI & TMPGEnc plus 2.59 (as I do the few times I back up my DVDs), with the same settings of CCE but with 2 pass VBR, since TMPGenc don't have more passes.
The result was a perfection, the best 2-CD CVD back up I ever did, thing which also rise the fact of the TMPGenc plus improvment at the latest built.

So, it is obvious that this aliasing of CVD is a result of a bad setup of DVD2SVCD, or a bad support of CVD by CCE. Unfortunatelly, my free time is over, and I don't have time to read the related doom9 forums, which I am sure they have already solution for this thing.
And I strongly believe that many users wont' do it eather, that's why I point the problem here, in this post.

For now, I can simply propose to all those enthusiast having probs with CVD, like this aliasing and distortion of the picture, for once do a encode with tmpgenc and compare the results.
The bottom line is that you don't have aliasing probs or pixel distortion with TMPGenc Plus. Since I don't use CCE that much, I don't know how that is fixed with this encoder. But the aliasing and distortion ain't there because of CVD nature. And that is what I also want to point.

I'll test further when I have time again (in about a month). Since then, any posting for the subject is very welcome!