From owner-freebsd-current  Fri May 23 16:19:08 1997
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Message-ID: <19970524011600.BF46425@uriah.heep.sax.de>
Date: Sat, 24 May 1997 01:16:00 +0200
From: j@uriah.heep.sax.de (J Wunsch)
To: current@FreeBSD.ORG
Subject: Re: cd9660 filesystem slowed down ???
References: <317.864424791@critter> <199705232228.PAA07918@phaeton.artisoft.com>
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Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
In-Reply-To: <199705232228.PAA07918@phaeton.artisoft.com>; from Terry Lambert on May 23, 1997 15:28:33 -0700
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As Terry Lambert wrote:

> > Terry, the native size is 2 K for CDROMS... 
> 
> I thought it was 1k for all optical media?

The native block size of a CD is 75 frames, or 2352 bytes.  When used
as a CD-ROM, this strips down to 2048 bytes since the remainder is
used for ECC and sector addressing fields.

MOs have (hard) block sizes of 512, 1024, 2048 (or 4096?) bytes.

WORMs are obsolete.  I think they were 512 bytes, but i'm not sure.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)