[Lord Jester]

I use cheapy cds. 50 cd spindle for $13 US. And I have never had a problem. I even burn them @ 16x! So personaly I think this "Use High Quality CDS" is a load. Anyway. Im not sure I quite understand you problem. You play them for about 30 mins and then they dont work?
Dose the DC just crash? It could be overheating. Make sure your DC is in a well vented area
away from vents or any heat sources. And make sure your CD's are at room temp. I heard some people having problems with cold cds. As far as the 80min cd thing goes. It all depends
on the size of the game. Anything over 650megs will need a 80min cd. Most of them come
with some sort of a NFO file telling you what size cd you need. Basicly if the software tells
you theres not enough room on the cd then put in a 80min. Those 2 games you mentioned
dont need an 80min.