I have burnt more than 200 of these CDs and have not had a single one fail on me!!! I have used them in my 52X drive (burning at 52X always) to burn my data (backup of hard drive) and Video Cds (VCD) and also Audio Cds. All work perfectly 1st time.
I cant recommend these too highly. The only let down maybe there are no jewel cases, but i find them too bulky for the amount of CDs i burn anyway!
Also the top of the Cds are great, they are mostly blank so you have plenty of room to use a CDR marker pen to write the content on it.