Path: utzoo!attcan!telly!lethe!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!ub!canisius!pavlov
From: pavlov@canisius.UUCP (Greg Pavlov)
Newsgroups: comp.arch
Subject: Re: CD-ROM documents (was Paperless Office)
Message-ID: <3063@canisius.UUCP>
Date: 7 Dec 90 06:07:33 GMT
References: <11191@pt.cs.cmu.edu> <00940487.15804140@KING.ENG.UMD.EDU> <AGLEW.90Dec4170052@treflan.crhc.uiuc.edu>
Organization: Canisius College, Buffalo N.Y. 14208
Lines: 10

In article <AGLEW.90Dec4170052@treflan.crhc.uiuc.edu>, aglew@crhc.uiuc.edu (Andy Glew) writes:
> Why are CD-ROM seeks so slow?  Is it related to the spiral tracking?
> Other optical disks (WORM and RW) have seeks on the order of 70ms.
> Proximal seeks are faster.  Do CD-ROMs have proximal seeks?
> 
  Unless the technology has changed,  part of the problem was (is) that the
  head mass is considerably greater.

   greg pavlov, fstrf, amherst, ny
   pavlov@stewart.fstrf.org