I read about CD-R quality at gamecopyworld.com and the testers found out that best CD-Rs are made by these companies:
Mitsui Chemicals:HP, Mitsui, Philips & Sony
Taiyo Yuden Company Limited: Taiyo Yuden, 3M, Sony, Philips, Boeder & Imation
TDK Corporation: 3M, Pioneer, TDK & Yamaha
Kodak Japan Limited: BASF & Kodak
Pioneer Video Corporation: Pioneer
Ricoh Company: KAO & Ricoh

so what do you think...
If you are thinking to buy some CD-Rs so buy from those manufacturers.

hope this helps a bit.............Sonyfreak..........