Originally posted by: K-squared
That's because 10x CD-RW media is "high-speed" media. You can't use 4x media on a high speed CD-RW drive - read your drive's user manual.
If the information isn't in the user manual, do a search on "Orange Book", which I believe the the standard for the high-speed 10x media....
I also seem to remember, that you cannot use the high-speed media on a "slow" speed CD-rewriter - again, this is from memory so you should read-up on the -RW media formats....
K²
I guess this is where you need to have a chitchat with my 32X12X40X CDRW. It doesn't seem to have a problem with Memorex (Ritek) 4X CDRWs. Perhaps the local steward hasn't convinced it to join the union yet. I'm not a union shop ... hope this revelation doesn't mean labor problems in the future.
Now, my Lite-On Manual is sorta backwards to part of what you've stated about low speed CDRWs in high speed drives. It says:
"When writing at 4x or higher speed, it's important to use media that is certified for recording at that speed (some recorders wisely refuse to write at at a high speeds [sic] on media not rated for it). This is especially critical when writing at 4x speed to CD-RW media. Another point to remember is that a drive that can write8 or 10x CD-RW media is backward compatible and will also read slower CD-RW media, but a drive that cannot write CD-RW media over 4x cannot use CD-RW media that has been recorded faster than 4x."
I interpret this as the tech writer who wrote the manual implies my 32X12X40X CD-RW will write 4X CD-RWs. And that seems, so far, to be backed up by reality.
As for the Orange Book, the manual says .... 4X, 2X and 1X CD-RWs should be compatible with Orange Book Part3 Vol 1, and 4X-10X CD-RWs should be compatible with Orange Book Part3 Vol 2. Of course, a 4X CD-RW would seemingly be in both?
I would agree with you about not being able to use 10X media in a 4X drive.
Maybe your computer is different. Mine works as above, YMMV,
Cran