72x CD-ROM!
ZXNet echo conference «zxnet.pc»
From George Valnin → To All 28 July 2000
Hello All!
F-Center Kenwood 72X TrueX in F-Center... 16:41
Remember how “it all began”? At first there were 2x, 4x, 6x speed CD-ROMs
devices. Their main problem was low speed. After a while
time, 8x, 10x, 12x speed devices appeared. Speed of these devices
increased, but the noise level when reading a disk also increased.
Modern 32x-52x CD-ROMs, when reading not particularly high-quality discs, can
make the entire system unit tremble. Moreover, at very high speed
the quality of "ripping" CD tracks from music CDs leaves much to be desired
the best. It is for this reason that conferences often ask questions about
"How to slow down a CD-ROM?" But in my opinion, it’s still 52x CD-ROM in software
slowed down to 10x (for example) is not the best option.
Oddly enough, there is a way out. Zen Research used the Kenwood 72X in its
TrueX is a new method of reading information from a disk, namely reading more than one
paths, but several at once. Therefore, the rotation speed of the disk in the drive can be
lower for the sake of noise reduction without sacrificing readout speed Of course, for
this requires a slightly larger head, which increases the time slightly
search (up to 100ms), but this does not noticeably affect the speed. In the end we
we have a CD-ROM that is as quiet as 8x and fast as 72x (according to manufacturer estimates).Personally, I really liked this device, since it did not emit any
sounds when reading discs and, accordingly, there was no vibration. Three
three-megabyte files were read in one or two seconds. By the way, "ordinary"
high speed CD-ROMs do not spin the discs at different speeds depending on
whether you are working with a disk or not, so on the Creative 52x reading these
files takes about ten seconds, since 5-6 seconds are first spent on
spinning up the disc and positioning the head. The only thing that can
to stop is the price of this device - 135 USD, but here it’s up to everyone to decide
himself - “to have or not to have.”
Best regards, George