From owner-freebsd-hardware@FreeBSD.ORG  Tue Nov 30 04:52:52 2004
Return-Path: <owner-freebsd-hardware@FreeBSD.ORG>
Delivered-To: freebsd-hardware@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 4518C16A4CE; Tue, 30 Nov 2004 04:52:52 +0000 (GMT)
Received: from eris.uffner.com (dsl092-233-211.phl1.dsl.speakeasy.net
	[66.92.233.211])	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 3765A43D54; Tue, 30 Nov 2004 04:52:49 +0000 (GMT)
	(envelope-from tom@uffner.com)
Received: from eris.uffner.com (localhost [127.0.0.1])
	by eris.uffner.com (8.13.1/8.13.1) with ESMTP id iAU4qmLO038971;
	Mon, 29 Nov 2004 23:52:48 -0500 (EST)
	(envelope-from tom@eris.uffner.com)
Message-Id: <200411300452.iAU4qmLO038971@eris.uffner.com>
To: freebsd-multimedia@freebsd.org
Date: Mon, 29 Nov 2004 23:52:48 -0500
From: Tom Uffner <tom@uffner.com>
X-Virus-Scanned: ClamAV 0.80/533/Sat Oct 16 21:09:44 2004
	clamav-milter version 0.80j
	on eris.uffner.com
X-Virus-Status: Clean
cc: freebsd-hardware@freebsd.org
Subject: is it possible to read CD-R with corrupt/missing TOC?
X-BeenThere: freebsd-hardware@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: General discussion of FreeBSD hardware
	<freebsd-hardware.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hardware>,
	<mailto:freebsd-hardware-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hardware>
List-Post: <mailto:freebsd-hardware@freebsd.org>
List-Help: <mailto:freebsd-hardware-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hardware>,
	<mailto:freebsd-hardware-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 30 Nov 2004 04:52:52 -0000

Is it possible (even in theory) to read a CD-R with a corrupt or
missing TOC?

I have a disc that was the only recording of a live performanace,
which appears to have failed while being finalized. It clearly has
data on it and there were no errors reported while burning, but it
is not recognized at all by normal players and it shows up as either
blank or invalid depending on which burner hardware/software i try
to read it with. the part of the disc where the lead-in should be
looks blank. it is an audio disc.

is there any way to recover the track data or do a low level read
and try to reconstruct it. i am willing to invest a few days worth
of coding and a small amount of money (if for example i need a
burner with better firmware support for recovering bad discs)

tom