Centrilium wrote:and they all gave me A+ write startegy ratings.
Unfortunately there are (at least) 2 uses for these codes. cfitz
looked into this a while ago. See the links in that post. One usage by one source is
a quality grade. But this is determined by tests, and is not codeds on the disc- which manufacturer would knowingly label media as Grade C anyway?
The codes you referred to are encoded in the ATIP of some media (see them via some identifier tools, e.g. in Nero: Disc Info + "Shift-Ctrl-Refresh") and have a different meaning: Asymmetry range (beta range +/-) and media type (A,B,C) information is used during OPC (Optimum Power Calibration) to find the best laser settings for burning on the disc.
I don't think that you should use this value as a quality rating
. True, older CMC's had A- and some newer ones are A+ like MC and TY. But RiTEK show A- and made-by-TDK media are B-. These are (in my experience) miles better than CMC.
Incidentally, my latest encounter with CMC (the Fujitsu-Siemens disks) is "useable but not great".