Probleme with DVD Writer

I can write into DVD? I have USE "MKCD" command

mkcd -r directorie -d /dev/cd1

please help me it s urgent

Not sure exactly what you are asking. But, The mkcd command or smit mkcd can be used to write to DVD. The mkcd command requires extra disk space, as it stages the backup data on disk. My understanding is the staging size is the size of the backup. So, if the backup size is greater than 2 GB, you'll need to change the ulimit (or fsize=-1 in /etc/security/limits) for non-root users.

Good morning
when I use mkcd, the image is succefully created but when, it try to write into DVD (cdrecord) the following message apear

Cdrecord 1.9 (powerpc-ibm-aix4.3.3.0) Copyright (C) 1995-2000 J�rg Schilling
scsidev: '1,0'
scsibus: 0 target: 1 lun: 0
Using libscg version 'schily-0.1'
/usr/bin/cdrecord: Invalid argument. Cannot send SCSI cmd via ioctl
burn_cd: Command error.
0512-322 mkcd: An error has occurred
writing the CD or DVD image to the CD or DVD device.

when I verifie device /dev/cd1 I find that it is IDE and not SCSI

thank you