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To: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com>
Cc: terry@cs.weber.edu, freebsd-bugs@FreeBSD.org
Subject: Re: problem for reading old CD-ROM 
In-Reply-To: Your message of "Thu, 11 May 1995 18:58:28 MST"
References: <199505120158.SAA13806@gndrsh.aac.dev.com> 
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Date: Fri, 12 May 1995 11:16:00 +0900
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"Rodney W. Grimes" writes:
> >  The cd-rom I tried to read is labled as
> >  "This disc was mastered to ISO 9660 Standard. Level 1",
> >  so I thought this is confomat cd-rom. (Is this not true?)
> 
> Refering to ISO 9660 : 1988 (E) sections 6.1.2 and 6.2.2 tell me that
> a Logical Sector and Logical Block are of size 2^(n+9) meaning 2048
> bytes or longer, thus a 512 byte logical block is infact a violation
> of ISO 9660 : 1988 (E).

 Can't `n' be 0, in that case, 2^(n+9) ==> 512
 (I'm sorry I can't find iso spec online from ftp.cdrom.co:/pub/cdrom,
  so I might be wrong.)

 Thank you for your time.