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Writing to DVD-RW using cdrecord
Hello,
I use a script to back up my data, and until recently was using CD-RW. I have upgraded to a DVD burner, and when trying to write to DVD-RW the cdrecord command fails, but K3b works just fine. It can burn the iso file created by the backup script.
I am wondering what is K3b doing that I am not.
The command in the script is as follows:
cdrecord -tao -eject speed=4 blank=fast dev=ATA:0,1,0 isofile
I use Suse 10 and the cdrecord is version 2.1, which is also what K3b uses since I checked in the configure dialog of K3b.
The error I get is this:
Unspecified command not implemented for this drive
While I was typing this message, I actually figured out how K3b was doing it by using the show debugging output button which shows what it did.
I wasn't going to post this message but I changed my mind in the hopes that it may help others.
To blank/format a dvd k3b uses the following command on my system:
dvd+rw+format -gui blank /dev/hdb
in my system the dvd writer is hdb, in yours it may be different.
To write to a dvd-rw is uses growisofs command:
growisofs -Z /dev/hdb=your_iso_file -dvd-compat -overburn -speed=4
It also uses undocumented -use-the-force-luke options. According the the manpage you should really know what you are doing, so I am leaving them out of my script.
I hope this is usefull to somone
Joe.
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