Hi Joerg, while exploring DVD burning in theory and practice i stumbled over some user-confusing behavior of cdrecord in cases where a DVD-RW media is not in a suitable state.
With written, non-appendable media it begins to issue error messages about CD and "100 minutes". With appendable media it runs into an SCSI error by attempting 53h RESERVE TRACK although feature 002Fh "DVD-R/-RW Write" is not current. Have a nice day :) Thomas Details: ---------------------------------------------------------------------------- Closed media produced by cdrecord -sao : $ cdrecord -v dev=0,0,0 driveropts=burnfree -eject -sao /dvdbuffer/fertig.iso Cdrecord-ProDVD-Clone 2.01.01a23 (i686-pc-linux-gnu) Copyright (C) 1995-2006 Jörg Schilling TOC Type: 1 = CD-ROM scsidev: '0,0,0' scsibus: 0 target: 0 lun: 0 Linux sg driver version: 3.1.25 Using libscg version 'schily-0.9'. Driveropts: 'burnfree' SCSI buffer size: 64512 atapi: 1 Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : '_NEC ' Identifikation : 'DVD_RW ND-4570A ' Revision : '1.02' Device seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM. Current: DVD-RW sequential overwrite Profile: DVD+R/DL Profile: DVD+R Profile: DVD+RW Profile: DVD-R/DL sequential recording Profile: DVD-RW sequential overwrite (current) Profile: DVD-RW restricted overwrite (current) Profile: DVD-RAM Profile: DVD-R sequential recording Profile: DVD-ROM Profile: CD-RW Profile: CD-R Profile: CD-ROM Profile: Removable Disk Using generic SCSI-3/mmc-2 DVD-R/DVD-RW/DVD-RAM driver (mmc_dvd). Driver flags : DVD MMC-3 SWABAUDIO BURNFREE Supported modes: PACKET SAO Drive buf size : 1769472 = 1728 KB FIFO size : 4194304 = 4096 KB Track 01: data 125 MB Total size: 125 MB = 64062 sectors Current Secsize: 2048 WARNING: Phys disk size 1077264 differs from rzone size 0! Prerecorded disk? WARNING: Phys start: 196608 Phys end 1273871 cdrecord: Data will not fit on any disk. cdrecord: Cannot write CD's >= 100 minutes. ---------------------------------------------------------------------------- Appendable media produced by growisofs or cdrskin : $ cdrecord -v dev=0,0,0 driveropts=burnfree -eject -sao /dvdbuffer/fertig.iso Cdrecord-ProDVD-Clone 2.01.01a23 (i686-pc-linux-gnu) Copyright (C) 1995-2006 Jörg Schilling TOC Type: 1 = CD-ROM scsidev: '0,0,0' scsibus: 0 target: 0 lun: 0 Linux sg driver version: 3.1.25 Using libscg version 'schily-0.9'. Driveropts: 'burnfree' SCSI buffer size: 64512 atapi: 1 Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : '_NEC ' Identifikation : 'DVD_RW ND-4570A ' Revision : '1.02' Device seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM. Current: DVD-RW sequential overwrite Profile: DVD+R/DL Profile: DVD+R Profile: DVD+RW Profile: DVD-R/DL sequential recording Profile: DVD-RW sequential overwrite (current) Profile: DVD-RW restricted overwrite (current) Profile: DVD-RAM Profile: DVD-R sequential recording Profile: DVD-ROM Profile: CD-RW Profile: CD-R Profile: CD-ROM Profile: Removable Disk Using generic SCSI-3/mmc-2 DVD-R/DVD-RW/DVD-RAM driver (mmc_dvd). Driver flags : DVD MMC-3 SWABAUDIO BURNFREE Supported modes: PACKET SAO Drive buf size : 1769472 = 1728 KB FIFO size : 4194304 = 4096 KB Track 01: data 125 MB Total size: 125 MB = 64062 sectors Current Secsize: 2048 Trying to clear drive status. cdrecord: Drive needs to reload the media to return to proper status. WARNING: Phys disk size 524288 differs from rzone size 0! Prerecorded disk? WARNING: Phys start: 196608 Phys end 720895 Starting to write CD/DVD at speed 4 in real SAO mode for single session. Last chance to quit, starting real write 0 seconds. Operation starts. Waiting for reader process to fill input buffer ... input buffer ready. BURN-Free is OFF. Turning BURN-Free on cdrecord: Input/output error. reserve_track_rzone: scsi sendcmd: no error CDB: 53 00 00 00 00 00 00 FA 3E 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 70 00 05 00 00 00 00 0A 00 00 00 00 30 05 00 00 Sense Key: 0x5 Illegal Request, Segment 0 Sense Code: 0x30 Qual 0x05 (cannot write medium - incompatible format) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 0.001s timeout 100s cdrecord: Cannot open next track. Writing time: 0.030s Average write speed 999.0x. Fixating... Fixating time: 0.000s BURN-Free was not used. cdrecord: fifo had 64 puts and 0 gets. cdrecord: fifo was 0 times empty and 0 times full, min fill was 100%. --------------------- Reproducability info: Appendable DVD-RW emerge from media which offer feature 0021h. On my drives this demands appendable, new or fully blanked media. cdrecord blank=all or dvd+rw-format -blank=full or cdrskin blank=all To be burned by growisofs -Z /dev/... /some/files or cdrskin dev=/dev/... -multi image.iso To be closed by growisofs -dvd-compat -M /dev/... /more/files or cdrskin dev=/dev/... another_image.iso (cdrskin version at least 0.3.2) I wrote down what i learned so far in http://libburnia.pykix.org/browser/libburn/trunk/doc/cookbook.txt?format=txt section "Sequential DVD-R[W] Cookbook". (Hints and corrections are highly welcome.) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
