TY's total line is not the same as it was 7+ years ago, but they are still the most reliable SL discs around. Read the reviews on SMS (in the link above), mostly 5 stars, there's a few bad ratings, but they are probably n00b's, and don't know how to burn properly yet !! i.e. "Firmware, what's firmware?"
EDIT: Just thought I would mention something else I recent found. They are Falcon DL's, see reviews
I purchased a 50 stack @ $39.99, SMS sent me an email flyer, they were on sale, used about half of them. Burned quite a few at 8X, made mostly Xbox 360 backups (cuz if the backup goes bad I can recreate from orig disc easily). Everyone of them burned great and the backups work flawlessly
Just thought I would share, cuz $40 for 50 is about half the price of Verb's (which is what I ALWAYS used for DL burns)
Media ID's:
RICOHJPN-D01-67 (Falcon DL)
MKM-001-00 (Verbatim DL)
TYG02 (TY Premium Cakebox)
TYG03 (TY Valueline Shrinkwrap, sometimes I get G02's)