From: James H. E. Maugham (James.H.Maugham_at_verizon.net)
Date: Sat Nov 03 2001 - 10:56:54 EST
Michael,
Michael Geary [mailto:Mike_at_Geary.com] wrote:
> The 24X isn't a CLV drive, is it? If so, then it spins REALLY fast. A 1X
> drive spins at 200 RPM to 530 RPM, so a 24X drive would be 4800 RPM to
> 12,720 RPM.
I'm pretty sure that the CD drives are CLV. IIRC you could hear it speed shift
as the heads moved from the inner to the outer tracks. I'll admit though that I
haven't had any CD drives in my machines in a long time, just the DVD drives, so
my recollection could be fuzzy.
> If the 24X is a CAV (Constant Angular Velocity) drive--that is, if 24X is
> its *maximum* transfer speed, not a *constant* transfer speed--then it would
> be spinning at 4800 RPM.
It _might_ be CAV. The spec sheet for the 24X drive from Toshiba states the
rotational speed is 5400RPM:
http://www.toshiba.com/taecdpd/techdocs/1902B/1902spec.shtml, but if that were
the case they would run at a constant speed which would never change regardless
of head position. I'm working on an admittedly faulty memory here, but I seem to
recall the 24X drive doing a lot of speed shifting when installing software.
Regards,
James
This archive was generated by hypermail 2.1.3 : Thu Jan 23 2003 - 09:57:46 EST