Yep… my friend asked me to copy some cd’s for him and even gave me a few cdr’s to do it with. They were DuraBrand (WALMART). I recorded at 32x (which there designed for) at noticed a loud noise coming from my burner! After it was done I opened it an it was cracked half-way through the disc!! I tried another but at 16x… same thing but crack stoped at the big inner ring on the CDR. After a successfull right at 4x… I gave it to my friend to use and when his 52x cd-rom spun up it shattered it in HALF!!! …these are def the worst media I have Ever used!!
here is the info on them: (walmart brand)
This Disc is designed for CD-RW/COMBO Drive Only.
Disc Type, Material = CD-R, Phthalocyanine
ATIP Lead-in = 97m 28s 15f
Norminal Capacity = 702.83MB (79m 59s 74f)
Disc Manufacturer maybe = GigaStorage
SMART-BURN Speed Limit = 32X