Problem writing DVD-R's under Debian

[Prabhu Ramachandran <prabhu_r@users.sf.net>]

Hi,

I'm running Debian Sarge on the i386.  I am using k3b to burn DVDs.  

 K3b Version: 0.11.20
 Kernel:      2.6.8-2-k7  (stock kernel that ships with Debian)

 $ growisofs --version
 * growisofs by <appro@fy.chalmers.se>, version 5.21,
   front-ending to mkisofs: mkisofs 2.01-unofficial-iconv (i686-pc-linux-gnu)

CD writer information:

 # dvd+rw-mediainfo /dev/hdc
 INQUIRY:                [SONY    ][DVD RW DRU-710A ][BY02]

I first used k3b's on-the fly mode to burn a data DVD-R (single layer
4.7 GB).  I had over 4 GB worth of files (each file was smaller than
1GB) that I burnt.  k3b reported no problems and underneath seems to
have run the following command:

growisofs comand:
-----------------------

/usr/bin/growisofs -Z /dev/hdc -use-the-force-luke=notray \
-use-the-force-luke=tty -use-the-force-luke=dao -dvd-compat -speed=4 \
-gui -graft-points -volid Prabhu's data3 -volset -appid K3B THE \
CD KREATOR VERSION 0.11.20 (C) 2003 SEBASTIAN TRUEG AND THE K3B TEAM \
-publisher -preparer K3b - Version 0.11.20 -sysid LINUX -volset-size \
1 -volset-seqno 1 -sort /tmp/kde-prabhu/k3bsTgCCa.tmp -rational-rock \
\ -hide-list /tmp/kde-prabhu/k3bVZmxlb.tmp -joliet -hide-joliet-list \
/tmp/kde-prabhu/k3bkFrmZb.tmp -full-iso9660-filenames \
-disable-deep-relocation -iso-level 2 -path-list \
/tmp/kde-prabhu/k3bddNn2b.tmp


There seemed to be no error messages.  Unfortunately I was unable to
mount the DVD.  When I did try to mount it I'd get the following
error:

 # mount /cdrom
  mount: wrong fs type, bad option, bad superblock on /dev/hdc,
  ...

 # dmesg | tail
 hdc: rw=0, want=68, limit=4
 isofs_fill_super: bread failed, dev=hdc, iso_blknum=16, block=16

dvd+rw-mediainfo revealed this:

# dvd+rw-mediainfo /dev/hdc
INQUIRY:                [SONY    ][DVD RW DRU-710A ][BY02]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         11h, DVD-R Sequential
GET [CURRENT] PERFORMANCE:
 Write Performance:     3.2x1385=4432KB/s@[0 -> 0]
:-( empty GET PERFORMACE descriptor
READ DVD STRUCTURE[#10h]:
 Media Book Type:       25h, DVD-R book [revision 5]
 Legacy lead-out at:    2298496*2KB=4707319808
READ DVD STRUCTURE[#0h]:
 Media Book Type:       25h, DVD-R book [revision 5]
 Last border-out at:    0*2KB=0
READ DISC INFORMATION:
 Disc status:           appendable
 Number of Sessions:    1
 State of Last Session: incomplete
 "Next" Track:          1
 Number of Tracks:      1
READ TRACK INFORMATION[#1]:
 Track State:           complete incremental
 Track Start Address:   0*2KB
 Free Blocks:           0*2KB
 Track Size:            2297888*2KB
 Last Recorded Address: 2297887*2KB
READ CAPACITY:          1*2048=2048


Thinking this was related to the "on-the-fly option" in k3b, I created
a 4.3 GB iso image and burnt another DVD-R using that .  These are the
logs from k3b:

 growisofs
 ----------
 Executing 'builtin_dd if=/home/prabhu/pr_data1.iso of=/dev/hdc obs=32k seek=0'
 /dev/hdc: "Current Write Speed" is 4.1x1385KBps.
 [...]
4666753024/4682797056 (99.7%) @4.0x, remaining 0:02
/dev/hdc: flushing cache
/dev/hdc: updating RMA
/dev/hdc: closing session
:-[ CLOSE SESSION failed with SK=5h/ASC=72h/ACQ=03h]: Input/output error

growisofs comand:
-----------------------
/usr/bin/growisofs -Z /dev/hdc=/home/prabhu/pr_data1.iso -use-the-force-luke=notray -use-the-force-luke=tty -speed=4 



I was unable to mount this DVD either.  I compiled the close.cpp file
from here:

     http://fy.chalmers.se/~appro/linux/DVD+RW/tools/?M=D

And ran that on the device, but that did not help at all.

I also built another test DVD with only 1GB of data and that did not
work either.

At this point I've blown an entire day trying to burn my data to DVDs.
I'd appreciate any help!  Please CC me on replies and let me know if
you need any more information.

Thanks!

regards,
prabhu