[ILUG] Backup Game CDROM?

[Conor Daly]

I'm trying to backup a game CDROM using dd and cdrecord and using cdrdao.
With cdrdao, I get various errors preventing a read of the CD (it's new,
clean etc) until finally, using 'cdrdao copy --read-subchan rw_raw", I get
a 750Mb datafile but the read is interspersed with the following errors:

WARNING: Found L-EC error at sector 7935 - ignored.

The resulting CD, when burned:

[root at valkerie root]# isoinfo -i /dev/cdrom
CD-ROM is NOT in ISO 9660 format


If I use 'dd if=/dev/cdrom of=cdrom.iso' I get:

dd: reading `/dev/cdrom': Input/output error

and a 1.6Mb iso file.  I'm presuming this is some sort of copy protection,
especially considering:

[cdaly at valkerie cdaly]$ df /mnt/cdrom/
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/cdrom              670522    670522         0 100% /mnt/cdrom

[cdaly at valkerie cdaly]$ du -s /mnt/cdrom/
630706  /mnt/cdrom

A difference of some 40184 blocks between disk size and filesystem useage.

So, given that I'm still entitled to do so under Irish Copyright's 'fair
use' provisions, does anyone know how I can make a backup of this CDROM?
I'm fairly sure that EA Games won't give me a replacement CD when I send
back the original after it's been well scratched after months of the kids'
handling...  Well, that's not strictly true..  Their 'limited warranty'
states: 

"During such period (12 months from date of purchase) defective media will
be replaced..."

and:

"replace user-damaged media, current stocks allowing.....  for STG7.50 per
CD"

Since this CD _must_ be in the drive to play the game, it will inevitably
get scratched (kids being small...).  If I don't make a backup of the CD,
I'll have to pay STG7.50 for a replacement (if it's still available...).
I wonder can I claim that the media is defective since I cannot make a
backup of it.  And, following on that, I wonder can I demand a perpetual
replacement of defective media since the replacement will not be copyable
either.

Irritating...

Conor
-- 
Conor Daly <conor.daly at oceanfree.net>

Domestic Sysadmin :-)
---------------------
Faenor.cod.ie
  7:39pm  up 90 days, 12:48,  0 users,  load average: 0.00, 0.00, 0.00
Hobbiton.cod.ie
  7:34pm  up 90 days, 12:37,  1 user,  load average: 0.01, 0.01, 0.00