Just bought a 25 disk pack of these TDK's at Staples. Total price with tax came out to $43.24, so $1.73 each---not too bad for my area.
I've only burned one so far. No problems with it, but since I don't have a Lite-on drive, I can't test it with Kprobe. It has the RICOHJPNR01 ATIP, and from a recent thread it seems that doesn't tell me very much---could be ricoh, ritek or cmc apparently.
I used an NEC 1300a burner at 4x speed and using Herrie's 107 bios. Hope the rest come out as well as the first.
Anyway, this is just a fyi notice.