The CD32 has a weak laser, and is slower reading from CD-Rs with dark ink (usually the more expensive ones). The more reflective the CD, the easier your CD32 should read it. Sometimes those cheap silver ones are actually better for burning CD32 games to. If they get scratched more easily than higher quality ones, who cares, you just burn a new one if the disc gets too scratched. It's better than waiting twice as long for the game to load every time.
