can burn cds but not dvds on F8

[Globe Trotter]

Hi,

I am using cdrecord on F8, wodim:1.1.6-6.fc8

I have been having a strange problem using my cd/dvdwriter. So, I use the following:

cdrecord -v -eject speed=24 dev=/dev/scd1 Fedora-9-i686-Live.iso
 
      which works just fine when writing to a CD-R. 

      However, the same command using 

cdrecord -v -eject speed=24 dev=/dev/scd1 Fedora-9-i386-DVD-iso

     does not. Instead, it produces the following:



wodim: No write mode specified.
wodim: Asuming -tao mode.
wodim: Future versions of wodim may have different drive dependent defaults.
TOC Type: 1 = CD-ROM
scsidev: '/dev/scd1'
devname: '/dev/scd1'
scsibus: -2 target: -2 lun: -2
Linux sg driver version: 3.5.27
Wodim version: 1.1.6
SCSI buffer size: 64512
Device type    : Removable CD-ROM
Version        : 0
Response Format: 2
Capabilities   : 
Vendor_info    : 'SONY    '
Identification : 'DVD RW DRU-510A '
Revision       : '1.0b'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Current: 0x001B (DVD+R)
Profile: 0x001B (DVD+R) (current)
Profile: 0x001A (DVD+RW) 
Profile: 0x0014 (DVD-RW sequential recording) 
Profile: 0x0013 (DVD-RW restricted overwrite) 
Profile: 0x0011 (DVD-R sequential recording) 
Profile: 0x0010 (DVD-ROM) 
Profile: 0x000A (CD-RW) 
Profile: 0x0009 (CD-R) 
Profile: 0x0008 (CD-ROM) 
Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
Driver flags   : SWABAUDIO BURNFREE 
Supported modes: PACKET SAO
Drive buf size : 4718592 = 4608 KB
Beginning DMA speed test. Set CDR_NODMATEST environment variable if device
communication breaks or freezes immediately after that.
Drive DMA Speed: 12430 kB/s 70x CD 8x DVD
FIFO size      : 4194304 = 4096 KB
Track 01: data  3414 MB        
Total size:     3921 MB (388:31.72) = 1748379 sectors
Lout start:     3922 MB (388:33/54) = 1748379 sectors
Current Secsize: 2048
HINT: use dvd+rw-mediainfo from dvd+rw-tools for information extraction.
Blocks total: 2295104 Blocks current: 2295104 Blocks remaining: 546725
Speed set to 5540 KB/s
Starting to write CD/DVD at speed   4.0 in real unknown mode for single session.
Last chance to quit, starting real write in    0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
Errno: 5 (Input/output error), reserve track scsi sendcmd: retryable error
CDB:  53 00 00 00 00 00 1A AD 9B 00
status: 0x0 (GOOD STATUS)
cmd finished after 41.461s timeout 40s
wodim: Cannot open new session.
Writing  time:   42.273s
wodim: fifo had 64 puts and 0 gets.
wodim: fifo was 0 times empty and 0 times full, min fill was 100%.



I have tried every possible blank DVD (including some bought new just today) and come with the same thing over and over again.

Any suggestions please? By the way, here is the output for 

cdrecord --scanbus
scsibus1:
        1,0,0   100) 'SAMSUNG ' 'CD-ROM SC-148A  ' 'B403' Removable CD-ROM
        1,1,0   101) *
        1,2,0   102) *
        1,3,0   103) *
        1,4,0   104) *
        1,5,0   105) *
        1,6,0   106) *
        1,7,0   107) *
scsibus3:
        3,0,0   300) 'SONY    ' 'DVD RW DRU-510A ' '1.0b' Removable CD-ROM
        3,1,0   301) *
        3,2,0   302) *
        3,3,0   303) *
        3,4,0   304) *
        3,5,0   305) *
        3,6,0   306) *
        3,7,0   307) *




Many thanks and best wishes,
Trotter