home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!ames!agate!dog.ee.lbl.gov!nosc!crash!cmkrnl!jeh
- From: jeh@cmkrnl.com
- Newsgroups: sci.electronics
- Subject: Re: Life after CDs
- Message-ID: <1992Jul29.175512.611@cmkrnl.com>
- Date: 30 Jul 92 00:55:12 GMT
- References: <1343@eouk9.eoe.co.uk> <1992Jul24.203724.22543@rchland.ibm.com> <3664@wzv.win.tue.nl> <1992Jul27.212455.18334@ole.cdac.com>
- Organization: Kernel Mode Consulting, San Diego, CA
- Lines: 15
-
- In article <1992Jul27.212455.18334@ole.cdac.com>, ssave@ole.cdac.com
- (Shailendra Save) writes:
- > The dots are spaced out more as you go to the outer edge of the disc, since
- > the radial speed increases as you go from inside to the outside. I wish they could
- > decrease the speed of the disc as the laser pickup reaches the outside of the disc,
- > and store more stuff on it. What do you think?
-
- What you're asking for is how CDs work *now*. That's why they're called
- 'constant linear velocity' (CLV). The rotational speed is reduced as the
- pickup moves from inner to lower tracks. Thus the dots-per-linear-inch is the
- same on all tracks, inner and outer.
-
- --- Jamie Hanrahan, Kernel Mode Consulting, San Diego CA
- Internet: jeh@cmkrnl.com, hanrahan@eisner.decus.org, or jeh@crash.cts.com
- Uucp: ...{crash,eisner,uunet}!cmkrnl!jeh
-