Re: DVD/CDROM writes not working!

I did a 'mount -t udf /dev/sr0 /mnt/usbdrive and when I have a blank
DVD+R disk in the USB DVD drive, this is what I get:

root@xxxxxxxxxxxxx:/usr/bin# !moun
mount -t udf /dev/sr0 /mnt/usbdrive
mount: block device /dev/sr0 is write-protected, mounting read-only
end_request: I/O error, dev sr0, sector 64
end_request: I/O error, dev sr0, sector 1248
end_request: I/O error, dev sr0, sector 1024
UDF-fs: No partition found (1)
mount: wrong fs type, bad option, bad superblock on /dev/sr0,
or too many mounted file systems
(could this be the IDE device where you in fact use
ide-scsi so that sr0 or sda or so is needed?)
root@xxxxxxxxxxxxx:/usr/bin#

Then I used my Windows XP to burn some files on the blank DVD+R disk
and when I tried to mount it again using the same command as before, it
gave:

root@xxxxxxxxxxxxx:~# mount -t udf /dev/sr0 /mnt/usbdrive
mount: block device /dev/sr0 is write-protected, mounting read-only
UDF-fs: No VRS found
mount: wrong fs type, bad option, bad superblock on /dev/sr0,
or too many mounted file systems
root@xxxxxxxxxxxxx:~#

Any clue why it may be failing?

Thanks

.

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