74min cdrs and 80min cdrs
 

Do i have to use 74min cdr with certain dc games and 80 min cdr for certain dc games? or can i just use 80 min cdr for all dc games?

As long as it fits on the disc, you can use any type of CD-R.

yep, i got all my stuff on 80 min. cd-r's. i havent even been able to find any 74 min cd-rs anymore.