Error reading end of DVD

[Brian White <bcwhite@precidia.com>]

(I tried sending this to the author of dvd+rw-tools but did not receive
any reply...  I thought I'd ask here since there was a previous thread
about reading from the end of a disc.  Any ideas from you guys?)

I just purchased a DVD rewriter and ran in to a problem accessing the end
of the disk.

I can create a 720MB ISO9660 image with mkisofs and mount it with "-o loop"
just fine.  However, after burning it to a DVD+RW, I get an error around the
700MB (after 341360 blocks, to be exact) mark with "dd".  Just trying to read
the files on the disc gives the same I/O error.  I'm using the 2.6.3 Linux
kernel.  Here are the steps I did on a DVD+RW disc:

	dvd+rw-format /dev/dvd
	growisofs -Z /dev/dvd=/tmp/cd-rZN93I.iso

	cat /dvd/015-install-wall-1.avi >/dev/null
	    cat: /dvd/015-install-wall-1.avi: Input/output error
	dd if=/dev/dvd of=/dev/null bs=2k
	    341360+0 records in
	    341360+0 records out
	    699105280 bytes transferred in 124.9 seconds (5597196 bytes/sec)

I thought perhaps it was a problem with the write, so I switched to XP
(running under vmware) and could read every file on the disk.  Then I used
Nero to burn the same files.  When I try to read this disk under Linux, I
get the same problem as above even though XP can read everything is just
fine.  I'd say it's not a a physical or filesystem error.

Any ideas?  Thanks!


saidin:/usr/share/bin$ isoinfo -d -i /dev/dvd
CD-ROM is in ISO 9660 format
System id: LINUX
Volume id: mudroom-reno
Volume set id: 
Publisher id: 
Data preparer id: Brian White <bcwhite@pobox.com>
Application id: MKISOFS ISO 9660/HFS FILESYSTEM BUILDER & CDRECORD CD-R/DVD CREATOR (C) 1993 E.YOUNGDALE (C) 1997 J.PEARSON/J.SCHILLING
Copyright File id: 
Abstract File id: 
Bibliographic File id: 
Volume set size is: 1
Volume set sequence number is: 1
Logical block size is: 2048
Volume size is: 364572
Joliet with UCS level 3 found
Rock Ridge signatures version 1 found

                                          Brian
                                 ( bcwhite@precidia.com )

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