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Well I don't know if this is a known bug or limitation but I can't seem to burn any Dual Layer Media using wodim but I can successfully with growisofs.<BR>
<BR>
# time cdrecord -v -dao dev=/dev/dvd1 driveropts=burnfree image.iso # note that i also tried with -sao option with same results.<BR>
TOC Type: 1 = CD-ROM<BR>
scsidev: '/dev/dvd1'<BR>
devname: '/dev/dvd1'<BR>
scsibus: -2 target: -2 lun: -2<BR>
Linux sg driver version: 3.5.27<BR>
Wodim version: 1.1.6<BR>
Driveropts: 'burnfree'<BR>
SCSI buffer size: 64512<BR>
Device type : Removable CD-ROM<BR>
Version : 5<BR>
Response Format: 2<BR>
Capabilities : <BR>
Vendor_info : 'LITE-ON '<BR>
Identification : 'DVDRW LH-20A1L '<BR>
Revision : 'BL01'<BR>
Device seems to be: Generic mmc2 DVD-R/DVD-RW.<BR>
Current: 0x002B (DVD+R/DL)<BR>
Profile: 0x002B (DVD+R/DL) (current)<BR>
Profile: 0x001B (DVD+R) <BR>
Profile: 0x001A (DVD+RW) <BR>
Profile: 0x0016 (DVD-R/DL layer jump recording) <BR>
Profile: 0x0015 (DVD-R/DL sequential recording) <BR>
Profile: 0x0014 (DVD-RW sequential recording) <BR>
Profile: 0x0013 (DVD-RW restricted overwrite) <BR>
Profile: 0x0012 (DVD-RAM) <BR>
Profile: 0x0011 (DVD-R sequential recording) <BR>
Profile: 0x0010 (DVD-ROM) <BR>
Profile: 0x000A (CD-RW) <BR>
Profile: 0x0009 (CD-R) <BR>
Profile: 0x0008 (CD-ROM) <BR>
Profile: 0x0002 (Removable disk) <BR>
Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).<BR>
Driver flags : SWABAUDIO BURNFREE <BR>
Supported modes: PACKET SAO<BR>
Drive buf size : 1068032 = 1043 KB<BR>
Beginning DMA speed test. Set CDR_NODMATEST environment variable if device<BR>
communication breaks or freezes immediately after that.<BR>
FIFO size : 12582912 = 12288 KB<BR>
Track 01: data 8133 MB <BR>
Total size: 9340 MB (925:23.61) = 4164271 sectors<BR>
Lout start: 9340 MB (925:25/46) = 4164271 sectors<BR>
Current Secsize: 2048<BR>
HINT: use dvd+rw-mediainfo from dvd+rw-tools for information extraction.<BR>
Blocks total: 4173824 Blocks current: 4173824 Blocks remaining: 9553<BR>
Speed set to 11080 KB/s<BR>
Starting to write CD/DVD at speed 8.0 in real SAO mode for single session.<BR>
Last chance to quit, starting real write i 0 seconds. Operation starts.<BR>
Preparing middle zone location for this DVD+R dual layer disc<BR>
dvd_dual_layer_split: read_dvd_structure returns invalid data<BR>
Waiting for reader process to fill input buffer ... input buffer ready.<BR>
Performing OPC...<BR>
Sending CUE sheet...<BR>
Starting new track at sector: 0<BR>
Track 01: 4075 of 8133 MB written (fifo 99%) [buf 99%] 8.2x.Errno: 5 (Input/output error), write_g1 scsi sendcmd: no error<BR>
CDB: 2A 00 00 1F D7 E9 00 00 1F 00<BR>
status: 0x2 (CHECK CONDITION)<BR>
Sense Bytes: 72 0B 00 00 00 00 00 0E 09 0C 00 00 00 02 00 00<BR>
Sense Key: 0x0 No Additional Sense, Segment 11<BR>
Sense Code: 0x00 Qual 0x02 (end-of-partition/medium detected) Fru 0x0<BR>
Sense flags: Blk 0 (not valid) <BR>
cmd finished after 200.710s timeout 200s<BR>
<BR>
write track data: error after 4273948672 bytes<BR>
wodim: A write error occured.<BR>
wodim: Please properly read the error message above.<BR>
Errno: 5 (Input/output error), test unit ready scsi sendcmd: no error<BR>
CDB: 00 00 00 00 00 00<BR>
status: 0x2 (CHECK CONDITION)<BR>
Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 04 01 00 00<BR>
Sense Key: 0x2 Not Ready, Segment 0<BR>
Sense Code: 0x04 Qual 0x01 (logical unit is in process of becoming ready) Fru 0x0<BR>
Sense flags: Blk 0 (not valid) <BR>
cmd finished after 0.024s timeout 200s<BR>
Writing time: 766.104s<BR>
Average write speed 8.9x.<BR>
Min drive buffer fill was 25%<BR>
Fixating...<BR>
Errno: 5 (Input/output error), flush cache scsi sendcmd: no error<BR>
CDB: 35 00 00 00 00 00 00 00 00 00<BR>
status: 0x2 (CHECK CONDITION)<BR>
Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 04 01 00 00<BR>
Sense Key: 0x2 Not Ready, Segment 0<BR>
Sense Code: 0x04 Qual 0x01 (logical unit is in process of becoming ready) Fru 0x0<BR>
Sense flags: Blk 0 (not valid) <BR>
cmd finished after 0.160s timeout 200s<BR>
Trouble flushing the cache<BR>
wodim: Cannot fixate disk.<BR>
Fixating time: 0.160s<BR>
wodim: fifo had 67510 puts and 67320 gets.<BR>
wodim: fifo was 16 times empty and 17371 times full, min fill was 0%.<BR>
<BR>
real 12m55.037s<BR>
user 0m0.424s<BR>
sys 0m4.695s<BR>
<BR>
<H1>
<I><B>MEDIA INFO</B></I>
</H1>
<BR>
INQUIRY: [LITE-ON ][DVDRW LH-20A1L ][BL01]<BR>
GET [CURRENT] CONFIGURATION:<BR>
Mounted Media: 2Bh, DVD+R Double Layer<BR>
Media ID: RITEK/S04<BR>
Current Write Speed: 8.0x1385=11080KB/s<BR>
Write Speed #0: 8.0x1385=11080KB/s<BR>
Write Speed #1: 6.0x1385=8310KB/s<BR>
Write Speed #2: 4.0x1385=5540KB/s<BR>
Write Speed #3: 2.4x1385=3324KB/s<BR>
GET [CURRENT] PERFORMANCE:<BR>
Write Performance: 3.2x1385=4432KB/s@[0 -> 0]<BR>
Speed Descriptor#0: 00/0 R@4.8x1385=6648KB/s <A HREF="mailto:W@8.0x1385=11080KB">W@8.0x1385=11080KB</A>/s<BR>
Speed Descriptor#1: 00/0 R@4.8x1385=6648KB/s <A HREF="mailto:W@6.0x1385=8310KB">W@6.0x1385=8310KB</A>/s<BR>
Speed Descriptor#2: 00/0 R@4.8x1385=6648KB/s <A HREF="mailto:W@4.0x1385=5540KB">W@4.0x1385=5540KB</A>/s<BR>
Speed Descriptor#3: 00/0 R@4.8x1385=6648KB/s <A HREF="mailto:W@2.4x1385=3324KB">W@2.4x1385=3324KB</A>/s<BR>
READ DVD STRUCTURE[#0h]:<BR>
Media Book Type: 00h, DVD-ROM book [revision 0]<BR>
Legacy lead-out at: 2086912*2KB=4273995776<BR>
DVD+R DOUBLE LAYER BOUNDARY INFORMATION:<BR>
L0 Data Zone Capacity: 2086912*2KB, can still be set<BR>
READ DISC INFORMATION:<BR>
Disc status: appendable<BR>
Number of Sessions: 1<BR>
State of Last Session: incomplete<BR>
"Next" Track: 1<BR>
Number of Tracks: 2<BR>
READ TRACK INFORMATION[#1]:<BR>
Track State: partial/complete<BR>
Track Start Address: 0*2KB<BR>
Next Writable Address: 2086912*2KB<BR>
Free Blocks: 2077360*2KB<BR>
Track Size: 4164272*2KB<BR>
READ TRACK INFORMATION[#2]:<BR>
Track State: blank<BR>
Track Start Address: 4164288*2KB<BR>
Next Writable Address: 4164288*2KB<BR>
Free Blocks: 9536*2KB<BR>
Track Size: 9536*2KB<BR>
ROM Compatibility LBA: 262144<BR>
READ CAPACITY: 0*2048=0<BR>
<BR>
<H1>
SYSTEM INFO
</H1>
gcc-4.2.0<BR>
glibc-2.6.1-r0<BR>
2.6.22 kernel x86_64<BR>
System CPU: Dual Core AMD Opteron(tm) Processor 165<BR>
cdrkit-1.1.6<BR>
<BR>
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-- <BR>
Fernando <<A HREF="mailto:email@missionaccomplish.com">email@missionaccomplish.com</A>>
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