@see FileSystem CDRom Recover

• http://en.wikipedia.org/wiki/Universal_Disk_Format
• http://sourceforge.net/projects/linux-udf/
• http://gentoo-wiki.com/HOWTO_Packet_Writing_on_CD-RW_Media
• http://packages.qa.debian.org/u/udftools.html

$ modprobe -v pktcdvd
$ umount /dev/cdrom 
$ cdrwtool -d /dev/cdrom -q
using device /dev/cdrom
1850KB internal buffer
setting write speed to 12x
Settings for /dev/cdrom:
      Fixed packets, size 32
      Mode-2 disc
I'm going to do a quick setup of /dev/cdrom. The disc is going to be blanked and formatted with one big track.
All data on the device will be lost!! Press CTRL-C to cancel now.
ENTER to continue.
Initiating quick disc blank
Disc capacity is 275616 blocks (551232KB/538MB)
Formatting track
...

$ mount /mnt/cdrw
# mount: /dev/pktcdvd0 is not a valid block device

sudo apt-get install udftools modconf dpkg-reconfigure udftools

$ mount /dev/pktcdvd/0 /mnt/tmp
# mount: block device /dev/pktcdvd/0 is write-protected, mounting read-only