I know at one time, Kodak had some pretty good media, but I'm guess that these may not be premium grade... Actually, maybe next time I'll get a pack and see what they are (or claim to be).
Whats the betting on CMC, fake TY or fake MCC ?
They will probably have either MBI or Umedisc/AML MID code.
Pepst is right on the money. I was fortunate enough to get MBI on mine, though I can't really knock AML
For 4 discs though that's a lot - you can usually get same quality discs in a fifty pack for like 10p a disc O.o