Hello, I have a dell at work and I would like to write packet writing cdrw with it. But it appears that it has a drive not compatible with your patch. This is my software and harware specifications: samsung cdrw/dvd sm-352f, firmware T902 /dev/pktcdvd/0=>/dev/hda kernel 2.6.13 udftools deb package v 1.0.0b3-10 dell GX280 ---------------------------------------------------------------- When I format the cdrw: # cdrwtool -t12 -q -d /dev/hda setting speed to 12 using device /dev/hda 1914KB internal buffer setting write speed to 12x Settings for /dev/hda: Fixed packets, size 32 Mode-2 disc I'm going to do a quick setup of /dev/hda. The disc is going to be blanked and formatted with one big track. All data on the devicewill be lost!! Press CTRL-C to cancel now. ENTER to continue. Initiating quick disc blank Disc capacity is 295264 blocks (590528KB/576MB) Formatting track start=0, blocks=16, type=RESERVED start=16, blocks=3, type=VRS start=19, blocks=237, type=USPACE start=256, blocks=1, type=ANCHOR start=257, blocks=31, type=USPACE start=288, blocks=32, type=PVDS start=320, blocks=32, type=LVID start=352, blocks=32, type=STABLE start=384, blocks=1024, type=SSPACE start=1408, blocks=293568, type=PSPACE start=294976, blocks=31, type=USPACE start=295007, blocks=1, type=ANCHOR start=295008, blocks=160, type=USPACE start=295168, blocks=32, type=STABLE start=295200, blocks=32, type=RVDS start=295232, blocks=31, type=USPACE start=295263, blocks=1, type=ANCHOR Writing UDF structures to disc wait_cmd: Input/output error Command failed: 2a 00 00 00 00 00 00 00 20 00 00 00 - sense 02.04.04 wait_cmd: Input/output error Command failed: 2a 00 00 00 00 00 00 00 20 00 00 00 - sense 02.04.04 Quick setup complete! # ---------------------------------------------------------------- message from the format operation #dmesg ... cdrom: This disc doesn't have any tracks I recognize! cdrom: This disc doesn't have any tracks I recognize! pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed pktcdvd: pkt_get_last_written failed # -------------------------------------------------------------- if I try to mount the disc: #mount -t udf /dev/pktcdvd/0 /mnt/cdudf/ # ------------------------------------------------------------------- message from the mount operation #dmesg pktcdvd: Fixed packets, 32 blocks, Mode-2 disc pktcdvd: Max. media speed: 10 pktcdvd: write speed 10x pktcdvd: 590528kB available on disc UDF-fs: No partition found (1) # Do you know what the matter with this drive? Thanks. Romain.