Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!elroy.jpl.nasa.gov!swrinde!ucsd!sdcc6!cs.ucsd.edu!bowdidge
From: bowdidge@cs.ucsd.edu (Robert Bowdidge)
Newsgroups: comp.multimedia
Subject: Re: Get audio data out of CD_ROM
Keywords: Mac, audio CD
Message-ID: <1991Jun10.132929@cs.ucsd.edu>
Date: 10 Jun 91 20:29:29 GMT
References: <4271@borg.cs.unc.edu>
Sender: news@sdcc6.ucsd.edu
Reply-To: bowdidge@cs.ucsd.edu (Robert Bowdidge)
Organization: CSE Dept., U.C. San Diego
Lines: 29
Originator: bowdidge@beowulf.ucsd.edu

In article <4271@borg.cs.unc.edu>, yuan@hatteras.cs.unc.edu (Xialin Yuan) writes:
|> Does someone know how to get the Mac to read audio data from CD-ROM,
|> and would like to give me a pointer to the directions. I have been
|> looking for help for quite some time.
|> 
|> What I would like to do is to copy lots of our CD sound into Mac directly,
|> (of course I have to convert into appropiate formats ) so we would have
|> sound more easily available in Mac, our sound server. I tried SCSI manager, 
|> and it seemed that it did not work out it quite right.


As I understand it, most CD-ROM players are set up so you can't access
the data.  I think the reason is that the CD's firmware won't let you
access the CD's data on a byte-by-byte level.  It might also be due to
a flag on the disk that indicates it _shouldn't_ be accessible as raw
data.  The CD-ROM players may just not send data when they see this
bit, while a music-CD player will allow it to be played.

Two solutions I've seen: I believe some hackers in Germany figured out
how to get an Atari CD-ROM player to read the music data.  I do
remember the instructions were published in some book available ove
there.  The other solution is similar to what some folks in Berkeley
tried -- watching the data lines for a certain CD player so that they
could grab the data as it was read off disk.


As far as I know, there's no easier solution. :(

-- Robert bowdidge@cs.ucsd.edu