Ultra spped cd-rw writing problem

['Forum Post]

Here is When I read from Memorex's website. In short: my burner is not
capable of burning these cd-rw because the technology is different. 
Sonmez


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http://www.memorex.com/images/spacer.gif] 												 												
													CD & DVD Drives: My CD-RW drive won’t work with the new
CD-RW discs.  What’s wrong? 												 												 													
												 												 													There are two different types
of CD-RW: a) the 1X-4X version, and b) the “high-speed” 8X-10X version.
Older drives with a maximum rating of 4X for CD-RW are limited to the
1X-4X discs. New drives can use either type of disc up to the maximum
speed rating of the medium. 

The ability of CD-RW discs to be erased and recorded again has led to
changes to allow them to be the future replacement of floppy diskettes.
Unfortunately, some of these changes have run into some technological
restrictions that have required a new, incompatible CD-RW disc. Almost
all drives being manufactured today are CD-R/-RW drives that can record
both CD-Rs and CD-RWs. These drives are described by the maximum speeds
they can achieve for three operations: CD-R writing/CD-RW rewriting/and
CD-ROM reading. For example, a drive that is specified as 16X/4X/32X is
capable of: 1) writing CD-Rs at a maximum speed of 16 times the
standard audio playback speed; 2) rewriting CD-RWs at 4 times that
speed; and 3) reading back a CD-ROM at a maximum speed of 32 times the
audio playback speed. The original design of CD-RWs limited the fastest
recording to 4X, 4 times the regular speed. The discs had to be
formatted first, just as unformatted diskettes had to be formatted,
that is, have a file structure recorded on them so that information
could be recorded in the right places with addresses so that the same
information could be retrieved quickly or rearranged on the diskette.
In an attempt to make the CD-RW more popular, engineers redesigned the
CD-RW to be capable of faster recording speeds. That meant both a
change in the formatting process whereby some formatting was done
during recording and also a change in the design of the disk and
recording drives to overcome earlier technical restrictions that
limited recording speed. The design changes mean that older 1X--4X
drives will not work with the faster 4X-8X CD-RWs. Even though the
older CD-RWs rated at 1X--4X and the new CD-RWs rated at 4X--10X share
a 4X speed, many people may assume that there is some compatibility at
the 4X speed. The two versions share only the speed rating; but the
“write strategy,” that is, the amount of laser power and the timing of
the light bursts, is different. The “high-speed” CD-RWs will work only
on the high-speed CD-RW drives. High-speed CD-RWs will not record
properly on the older drives using their built-in write strategy, so
engineers have prevented their ability to write at all on these drives
by shifting the Power Calibration Area in the ATIP on high-speed CD-RW
discs. When an older drive looks for and cannot find the PCA where it
expects it to be, the drive gives up and sends an “invalid” message to
the user. There is nothing wrong with either the drive or the medium.
They are just not designed for each other. Fortunately, the newer,
high-speed drives do recognize and are able to use the older 1X-4X
CD-RW discs at their maximum 4X speed.


-- 
sonmez