[QUOTE=Womi;2074100]In my opinion, recent 48x CD-R media can be split up in two classes:
[B]Class 1[/B] - Taiyo Yuden & Verbatim Super Azo
[B]Class 2[/B] - Everything else
[B]Class 1[/B] being excellent, [B]Class 2[/B] being decent to very good.
You usually get CMC, Ritek, Prodisc, Daxon or MBI CD-Rs, no matter what brand you buy (maybe some MIC stuff at no name brands, but even these wont give you problems in my experience)[/QUOTE]
Bit simplistic of an analysis there. I have over 200 CD-Rs here and so I think I’m in a position to offer a differing view. you are right in that MIDs like DAXON, Ritek, Prodisc and so on belong in Class 2. Good media, but not necessarily the best.
I would argue that most CMC MAG belongs in a “[B]Class 3[/B]” classification, being in my experience, even with the best implementations, i.e. Memorex, isn’t all that stable.
[B]Class 4[/B]: Lower-end CMC MAG implementations, such as the crap you buy in discount chain Lidl under the “Octron” brand (unless they’ve improved in the last 5 years, I had a 10 pack of these, all unreadable now )
Also in Class 4 are crappy sub-CMC grade manufacturers that tint their rubbish quality cyanine discs substrate layers to make their discs look like phthalocyanine. From Wikipedia.
Unfortunately, many manufacturers have added additional coloring to disguise their unstable cyanine CD-Rs in the past, so the formulation of a disc cannot be determined based purely on its color.
I still have 1 CD like that, branded "Mediastar. Nasty.
Hopefully, the kind of CD-Rs I have classified as Class 4 are no longer in common production. But even modern implementations of CMC MAG should be avoided to be on the safe side, as should brands known to use them, like Memowrecks.