I'm having problems playing SVCD files on my panasonic S35.

SVCD's play for a little while, but then green blocks begin to appear and it is unwatchable.

Normally I burn using Nero but I tried using Alcohol 120, and it didn't seem to make a difference.

I did get one SVCD to work, but I'm not sure what I did different. It was on the same CD media as ones that don't work.

Any suggestions?