I use MainConcept for converting AVI files to MPEG2. It give me great results.

And I use DVD-Lab for making menus using the MPEG2 files as the content to be shown.

But when I open the MPEG file in DVD-Lab, he is accepted normally, but when I play the file in DVD-Lab, in the window on the right-down part of the screen, the video is shown with some squares. (It's not low-quality problems. the kbps size is big and the file in AVI has a good quality)

When I opened the files out of the DVD-Lab they were normals, and I even had not much problems with these squared files, when I tested in my DVD-player (a Semp Toshiba one). But when I tested in on other DVD-player (a Gradient one), the squares shown only in the window on the right-down part of DVD-Lab screen was shown in this DVD-Player too.

I suspect that it may be something in the conversion for MPEG2 in the MainConcept. I believe that it may be some option that avoid these squares, because when I tried to convert an AVI file for MPEG using WinAVI (7), he hadn't these squares. (these squares wasn't shown in TMPGenc MPEG Encoder too) But I think that it may be by the fact that i'm using a codec pack, too. (K-lite mega codec pack 1.31)

Anyone that know how MainConcept works, can help me?

(Sorry for my bad english