Thanks for the information, and support. Finally got it figured out and found the problem. I suspected the sr_mod might be the problem because I found out that I could get dvd+rw-mediainfo to read the disk again if I rmmod sr_mod and then insmod sr_mod.o.
Anyway here is the session output and the solution is at the end. It was a kernel patch that was causing the problem. Thanks, Alan $ dvd+rw-mediainfo /dev/dvd ; growisofs -Z /dev/dvd -dvd-video DVD/ INQUIRY: [SONY ][DVD RW DRU-500A ][2.0h] GET [CURRENT] CONFIGURATION: Mounted Media: 1Bh, DVD+R Media ID: RICOHJPN/R00 Current Write Speed: 2.4x1385=3324KB/s Write Speed #0: 2.4x1385=3324KB/s Write Speed #1: 2.0x1385=2770KB/s Speed Descriptor#0: 00/2295103 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s Speed Descriptor#1: 00/2295103 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s READ DVD STRUCTURE[#0h]: Media Book Type: A1h, DVD+R book [revision 1] Legacy lead-out at: 2295104*2KB=4700372992 READ DISC INFORMATION: Disc status: blank Number of Sessions: 1 State of Last Session: empty Number of Tracks: 1 READ TRACK INFORMATION[#1]: Track State: blank Track Start Address: 0*2KB Next Writable Address: 0*2KB Free Blocks: 2295104*2KB Track Size: 2295104*2KB Executing 'mkisofs -dvd-video DVD/ | builtin_dd of=/dev/dvd obs=32k seek=0' /dev/dvd: "Current Write Speed" is 2.5x1385KBps. <delete output> 99.12% done, estimate finish Sun Mar 14 20:36:03 2004 99.45% done, estimate finish Sun Mar 14 20:36:02 2004 99.79% done, estimate finish Sun Mar 14 20:36:02 2004 Total translation table size: 0 Total rockridge attributes bytes: 0 Total directory bytes: 4096 Path table size(bytes): 42 Max brk space used 21224 1498188 extents written (2926 Mb) builtin_dd: 1498192*2KB out /dev/dvd: flushing cache /dev/dvd: closing track /dev/dvd: closing disc ***************************************************************** After this was completed the following error was found in the kernel logfiles. sr0: CDROM (ioctl) error, command: Test Unit Ready 00 00 00 00 00 Info fld=0x16dc50, Deferred sr00:00: sense key Medium Error Additional sense indicates No seek complete ***************************************************************** $ dvd+rw-mediainfo /dev/dvd INQUIRY: [SONY ][DVD RW DRU-500A ][2.0h] GET [CURRENT] CONFIGURATION: Mounted Media: 1Bh, DVD+R Media ID: RICOHJPN/R00 Current Write Speed: 2.4x1385=3324KB/s Write Speed #0: 2.4x1385=3324KB/s Write Speed #1: 2.0x1385=2770KB/s Speed Descriptor#0: 00/2295103 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s Speed Descriptor#1: 00/2295103 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s READ DVD STRUCTURE[#0h]: Media Book Type: A1h, DVD+R book [revision 1] Legacy lead-out at: 2295104*2KB=4700372992 READ DISC INFORMATION: Disc status: appendable Number of Sessions: 1 State of Last Session: incomplete "Next" Track: 1 Number of Tracks: 2 READ TRACK INFORMATION[#1]: Track State: complete Track Start Address: 0*2KB Track Start Address: 0*2KB Free Blocks: 0*2KB Track Size: 1498192*2KB READ TRACK INFORMATION[#2]: Track State: blank Track Start Address: 1498208*2KB Next Writable Address: 1498208*2KB Free Blocks: 796896*2KB Track Size: 796896*2KB ***************************************************************** $ cdrecord-prodvd-2.01a26-i686-pc-linux-gnu -v dev=sony -fix Cdrecord-ProDVD-Clone 2.01a26 (i686-pc-linux-gnu) Copyright (C) 1995-2004 J�rg Schilling Unlocked features: ProDVD Clone Limited features: This copy of cdrecord is licensed for: private/research/educational_non-commercial_use TOC Type: 1 = CD-ROM scsidev: '1,0,0' scsibus: 1 target: 0 lun: 0 Linux sg driver version: 3.1.25 Using libscg version 'schily-0.8'. Driveropts: 'burnfree' SCSI buffer size: 64512 atapi: 1 Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : 'SONY ' Identifikation : 'DVD RW DRU-500A ' Revision : '2.0h' Device seems to be: Generic mmc2 DVD-R/DVD-RW. Current: DVD+R Profile: DVD+R (current) Profile: DVD+RW Profile: DVD-RW sequential overwrite Profile: DVD-RW restricted overwrite Profile: DVD-R sequential recording Profile: DVD-ROM Profile: CD-RW Profile: CD-R Profile: CD-ROM Using generic SCSI-3/mmc-3 DVD+R driver (mmc_dvdplusr). Driver flags : DVD MMC-3 SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96R RAW/R96R Drive buf size : 4718592 = 4608 KB Current Secsize: 2048 WARNING: Phys disk size 2295104 differs from rzone size 1498192! Prerecorded disk? WARNING: Phys start: 196608 Phys end 2491711 Starting to write CD/DVD at speed 2 in real TAO mode for single session. Last chance to quit, starting real write 0 seconds. Operation starts. Fixating... Fixating time: 34.284s ***************************************************************** $ dvd+rw-mediainfo /dev/dvd INQUIRY: [SONY ][DVD RW DRU-500A ][2.0h] GET [CURRENT] CONFIGURATION: Mounted Media: 1Bh, DVD+R Media ID: RICOHJPN/R00 Current Write Speed: 2.0x1385=2770KB/s Write Speed #0: 4.0x1385=5540KB/s Speed Descriptor#0: 00/2295103 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s Speed Descriptor#1: 00/2295103 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s READ DVD STRUCTURE[#0h]: Media Book Type: A1h, DVD+R book [revision 1] Legacy lead-out at: 1498192*2KB=3068297216 READ DISC INFORMATION: Disc status: complete Number of Sessions: 1 State of Last Session: complete Number of Tracks: 1 READ TRACK INFORMATION[#1]: Track State: complete Track Start Address: 0*2KB Free Blocks: 0*2KB Track Size: 1498192*2KB FABRICATED TOC: Track#1 : [EMAIL PROTECTED] Track#AA : [EMAIL PROTECTED] Multi-session Info: [EMAIL PROTECTED] ****************************************************************** Okay, I decided to remove the dvd+rw kernel patch. http://fy.chalmers.se/~appro/linux/DVD+RW/linux-2.4.patch Curently running kernel 2.4.26-pre3 #1 SMP with the above patch removed. Don't know why I installed it in the first place. Whatever. Anyway "growisofs" works like a charm and the session closes out perfectly! No errors, and dvd+rw-mediainfo reports all sessions are complete. So the lession is don't install the dvd+rw patch with at least the above kernel! I did not see that on your tutorial page, but it maybe buried somewhere on the page. Burning DVD's again. Thanks, Alan

