Hi,
I'm having a strange (at least for me) problem burning multisession
DVD+R media: the dvd becomes unreadable after the 3rd session is burned.
mount refuses to do its work, and kernel says:
Unable to identify CD-ROM format.
Note that there isn't any read error, so the kernel is simply unable to
locate the primary volume descriptor.
That happened with 3 different disks (and different data, though
sessions size were similar). DVD were burned with growisofs (5.19.4.9.7)
using the following command:
growisofs -M /dev/hdc -J -r files (-Z for the first session)
mkisofs version is 2.01a29.
I don't think that the problem is related to the inode wrap after 4GB
because:
* The 1st and 2nd sessions took about 2.6GB, the last was 1.8GB so
directories should be before the 4GB boundary.
* I tried the patch from Paul Serice without success.
This is the output of dvd+rw-mediainfo:
INQUIRY:[_NEC][DVD_RW ND-1300A ][1.0A]
GET [CURRENT] CONFIGURATION:
Mounted Media: 1Bh, DVD+R
GET [CURRENT] PERFORMANCE:
Write Performance: 3.9x1385=5408KB/[EMAIL PROTECTED] - 2295104]
Speed Descriptor#0:00/2295104 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s
Speed Descriptor#1:00/2295104 [EMAIL PROTECTED]/s [EMAIL PROTECTED]/s
READ DVD STRUCTURE[#0h]:
Media Book Type: A1h, DVD+R book [revision 1]
Media ID: RICOHJPN/R01
Legacy lead-out at:2295104*2KB=4700372992
READ DISC INFORMATION:
Disc status: appendable
Number of Sessions:4
State of Last Session: empty
Next Track: 4
Number of Tracks: 4
READ TRACK INFORMATION[#1]:
Track State: partial
Track Start Address: 0*2KB
Free Blocks: 0*2KB
Track Size:899648*2KB
READ TRACK INFORMATION[#2]:
Track State: partial
Track Start Address: 901696*2KB
Free Blocks: 0*2KB
Track Size:435648*2KB
READ TRACK INFORMATION[#3]:
Track State: partial
Track Start Address: 1339392*2KB
Free Blocks: 0*2KB
Track Size:896000*2KB
READ TRACK INFORMATION[#4]:
Track State: blank
Track Start Address: 2237440*2KB
Next Writable Address: 2237440*2KB
Free Blocks: 57664*2KB
Track Size:57664*2KB
FABRICATED TOC:
Track#1 : [EMAIL PROTECTED]
Track#2 : [EMAIL PROTECTED]
Track#3 : [EMAIL PROTECTED]
Track#AA : [EMAIL PROTECTED]
Multi-session Info:[EMAIL PROTECTED]
Same dvd, TOC dumped with cdrecord-prodvd:
WARNING: Phys disk size 2295104 differs from rzone size 899648! Prerecorded disk?
WARNING: Phys start: 196608 Phys end 2491711
first: 1 last 3
track: 1 lba: 0 (0) 00:02:00 adr: 1 control: 7 mode: -1
track: 2 lba:901696 ( 3606784) -56:24:46 adr: 1 control: 7 mode: -1
track: 3 lba: 1339392 ( 5357568) -1:59:74 adr: 1 control: 7 mode: -1
track:lout lba: 2235392 ( 8941568) -1:59:74 adr: 1 control: 7 mode: -1
Note that I get similar warnings for the other DVDs.
Kernel is 2.6.6 (and 2.6.7 for the last dvd), DMA is on for both the HD
and the DVD recorder. Also I don't have any problem filling the DVD in
one session.
The other OS is able to read the disk, so this may be a problem in the
isofs code (that's why I put lkml on CC).
Any idea of what's going on?
thanks,
Luca
PS: cc me, I'm not subscribed.
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