I encoded some VCDs using DVDX/TMPGENC, and burned them on proper CD-R (Sony) using WinOnCD.

They work fine on the PC, but when viewed on Toshiba SD-210, I get either some blocky scenes, or some interuptions in the display.
The sound is always in synch though.

1. Is is know weakness of such DVD players ?
2. Should I use other CD-R makes ?
3. It is probably not the encoding, nor the burning since the PC reads them fine, right ?

Many thanks for your help.