the 15pk says "made in China" on it.... but so far people have reported MKM001 code media, with decent results (like the above). I'd say it's risky, but so far results have been good. You might also get Ritek. There's also a chance they really ARE coming from a Chinese manufacturer.... but I don't know enough about them to say for sure.
If you *DO* buy a 15pk, I'd like to buy one off of you for my own evaluation. Personally, I don't want to spend $89 on a 15pk of DVD+RDL discs I might use 2 or 3 of at most.
Punch Cards -> Paper Tape -> Tape Drive -> 8" Floppy Diskette -> 5 1/4" Floppy Diskette -> 3 1/2" "Flippy" Diskette -> CD-R -> DVD±R -> BD-R
The Progression of Computer Media