Hi! According Documentation/packet-writing.txt disc must be formatted with command "cdrwtool -d /dev/sr0 -q" but it failed with following output: [root@lks /]# cdrwtool -d /dev/sr0 -q using device /dev/sr0 1314KB internal buffer setting write speed to 12x Settings for /dev/sr0: Fixed packets, size 32 Mode-2 disc I'm going to do a quick setup of /dev/sr0. 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 295264 blocks (590528KB/576MB) Formatting track wait_cmd: Input/output error Command failed: 04 17 00 00 00 00 00 00 00 00 00 00 - sense 05.2c.00 format disc: Illegal seek from dmesg: Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0 cdrom: : unknown mrw mode page sr0: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray scsi : aborting command due to timeout : pid 161, scsi0, channel 0, id 0, lun 0 Format Unit 17 00 00 00 00 hda: irq timeout: status=0xd0 { Busy } hda: DMA disabled hda: ATAPI reset complete sr0: disc change detected. sr0: CDROM not ready yet. sr0: CDROM not ready yet. sr0: CDROM not ready yet. sr0: CDROM not ready yet. sr0: CDROM not ready yet. sr0: CDROM not ready yet. sr0: CDROM not ready yet. sr0: CDROM not ready yet. sr0: disc change detected. sr0: CDROM (ioctl) reports ILLEGAL REQUEST. from /proc/scsi/scsi: Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: _NEC Model: DVD_RW ND-1300A Rev: 1.0A Type: CD-ROM ANSI SCSI revision: 02 Removeable: 1 I use 2.4.27 kernel with packet-2.4.27.patch. BTW, I got this errors then use first patch for 2.6.8, but -2 patch solved problems with formatting. Maybe Peter don't sync changes in this patch? -- WBR, Konstantin chat with ==>ICQ: 109916175 Lepikhov, speak to ==>JID: lakostis@jabber.org aka L.A. Kostis write to ==>mailto:lakostis@pisem.net.nospam ...The information is like the bank... (c) EC8OR