Don't known if I should be presenting this here. Burning a CD: Being new to Linux and Unix and having installed Ubuntu 7.04 (Feisty Fawn ) a month ago, I don't known if any of this information is useful. Prior to this installation, both devices worked with Windows (don't want to use) and Fedora 6 (problems). When I try to burn a CD with C/D / DVD creator, the following messages appeared: (1) Reload a rewritable or blank disk (it can read size of file) and (2) writing files to disk. When I right click on CD-RW/DVD RW Drive: This message appears: Cannot mount volume. Invalid mount option when attempting to mount the volume 'UDF Volume'. Also, when I try to mount the floppy, this message appears; cannot mount volume. mount: /dev/fdo is not a valid block device. Both of these devices can read a disk. Below are commands I ran after looking a bug reports #62986,#66254,#44233 and #6415. At the end of running DMESG [ 47.544000] Unable to identify CD-ROM format. [22866.180000] Unable to identify CD-ROM format. [23156.092000] Unable to identify CD-ROM format. [23253.824000] end_request: I/O error, dev fd0, sector 0 [23253.848000] end_request: I/O error, dev fd0, sector 0 [23257.664000] end_request: I/O error, dev fd0, sector 0 [23257.688000] end_request: I/O error, dev fd0, sector 0 [23267.016000] end_request: I/O error, dev fd0, sector 0 [23267.040000] end_request: I/O error, dev fd0, sector 0 [23327.592000] Unable to identify CD-ROM format. [24460.608000] Unable to identify CD-ROM format. [24666.344000] Unable to identify CD-ROM format. [24666.344000] Unable to identify CD-ROM format. [30979.064000] Unable to identify CD-ROM format. $ mount /dev/sdb1 on / type ext3 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) /sys on /sys type sysfs (rw,noexec,nosuid,nodev) varrun on /var/run type tmpfs (rw,noexec,nosuid,nodev,mode=0755) varlock on /var/lock type tmpfs (rw,noexec,nosuid,nodev,mode=1777) procbususb on /proc/bus/usb type usbfs (rw) udev on /dev type tmpfs (rw,mode=0755) devshm on /dev/shm type tmpfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) lrm on /lib/modules/2.6.20-16-generic/volatile type tmpfs (rw) /dev/sda2 on /media/windows type fuseblk (rw,nosuid,nodev,noatime,allow_other,blksize=4096) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) uname -a Linux jack-desktop 2.6.20-16-generic #2 SMP Wed May 23 01:46:23 UTC 2007 i686 GNU/Linux $ /usr/lib/nautilus-cd-burner/list_cddrives Drive: name: DVD+-RW TS-H653A device: /dev/scd0 door: closed type: CD-R, CD-RW, DVD-R, DVD-RW, DVD+R, DVD+R DL, DVD+RW, CD, DVD is mounted: FALSE max read speed: 8468 KiB/s (CD 56.4x, DVD 6.2x) max write speed: 8468 KiB/s (CD 56.4x, DVD 6.2x) write speeds: 8468 KiB/s (CD 56.4x, DVD 6.2x) 7056 KiB/s (CD 47.0x, DVD 5.2x) 5645 KiB/s (CD 37.6x, DVD 4.1x) 4234 KiB/s (CD 28.2x, DVD 3.1x) 2823 KiB/s (CD 18.8x, DVD 2.0x) 1412 KiB/s (CD 9.4x, DVD 1.0x) Media: label: 'UDF Volume' type: CD-R (has-data) is writable: FALSE is appendable: TRUE capacity: 701.00 MiB approx. or 80 mins 0 secs size: 0.63 MiB approx. or 0 mins 0 secs jack@jack-desktop:~$ cdrecord Quickly guessing the name of a drive capable to write CD-R, please wait... Found /dev/cdrw, assuming dev=/dev/cdrw wodim: No tracks specified. Need at least one. Usage: wodim [options] track1...trackn Use wodim dev=help to get a list of possible SCSI transport specifiers. jack@jack-desktop:~$ wodim dev=help Supported SCSI transports for this platform: Transport name: sg Transport descr.: Generic transport independent SCSI Transp. layer ind.: Target specifier: bus,target,lun Target example: 1,2,0 SCSI Bus scanning: supported Open via UNIX device: not supported Transport name: ATA Transport descr.: ATA Packet specific SCSI transport Transp. layer ind.: ATAPI: Target specifier: bus,target,lun Target example: ATAPI:1,2,0 SCSI Bus scanning: supported Open via UNIX device: not supported Transport name: ATA Transport descr.: ATA Packet specific SCSI transport using sg interface Transp. layer ind.: ATA: Target specifier: bus,target,lun Target example: 1,2,0 SCSI Bus scanning: supported Open via UNIX device: not supported Transport name: RSCSI Transport descr.: Remote SCSI Transp. layer ind.: REMOTE: Target specifier: rscsi@host:bus,target,lun Target example: REMOTE:rscsi@host:1,2,0 SCSI Bus scanning: supported Open via UNIX device: not supported jack@jack-desktop:~$ wodim dev=b,t,l driveropts=help -checkdrive wodim: Invalid argument. Cannot open SCSI driver!