I have cdrs for such a long time (I've owned 2x burners in the past), so I've used just about all kinds of media
This 24x plextor is pretty picky when it comes to media.. I always had a very weird issue with it, where data cds done on it many times wouldn't be perfectly readable, and I've always used brands that should be "decent", like sony, tdk and maxell. This was a huge problem to me, cause backing up was a nightmare, since I had to test every burn individually and redo them quite often.
So I got these "new" Samsumg 48x blanks and they run absolutely flawless, I've burnt like 80 cds without a single glitch. I'd just love to do these tests on the different kinds of media I have burnt in here to help me decide about future purchases and reliability of some of the data I have burnt...