Messages in this thread | | | From | Paweł Sikora <> | Subject | strange multisession DVD behaviour after closing the disc. | Date | Thu, 11 Nov 2004 21:11:25 +0100 |
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Hi,
I have written a multisession data DVD with Nero Burning ROM. Then I have added one more session and I have closed the disc with NEC ND-3500AG DVD/RW.
INQUIRY: [_NEC ][DVD_RW ND-3500AG][2.16] GET [CURRENT] CONFIGURATION: Mounted Media: 1Bh, DVD+R Media ID: AML/001 Current Write Speed: 6.1x1385=8467KB/s Write Speed #0: 6.1x1385=8467KB/s Write Speed #1: 5.1x1385=7056KB/s Write Speed #2: 4.1x1385=5645KB/s Write Speed #3: 3.1x1385=4234KB/s Write Speed #4: 2.0x1385=2822KB/s Write Speed #5: 1.0x1385=1411KB/s GET [CURRENT] PERFORMANCE: Write Performance: 4.0x1385=5540KB/s@[0 -> 2185872] Speed Descriptor#0: 00/2185872 R@5.0x1385=6925KB/s W@4.0x1385=5540KB/s Speed Descriptor#1: 00/2185872 R@5.0x1385=6925KB/s W@2.4x1385=3324KB/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: complete Number of Sessions: 2 State of Last Session: complete Number of Tracks: 2 READ TRACK INFORMATION[#1]: Track State: partial/complete Track Start Address: 0*2KB Free Blocks: 0*2KB Track Size: 1433568*2KB READ TRACK INFORMATION[#2]: Track State: partial/complete Track Start Address: 1435616*2KB Free Blocks: 0*2KB Track Size: 750256*2KB FABRICATED TOC: Track#1 : 17@0 Track#2 : 17@1435616 Track#AA : 17@2185872 Multi-session Info: #2@1435616 READ CAPACITY: 2185872*2048=4476665856
The content of this disc is accessible without any problem under WindowsXP. Under Linux, when I try to mount the disc I get an error:
[root]-[/media] # mount /dev/hdc dvd/ mount: block device /dev/hdc is write-protected, mounting read-only mount: wrong fs type, bad option, bad superblock on /dev/hdc, or too many mounted file systems
[root]-[/media] # dmesg |tail hdc: ATAPI 48X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache, UDMA(33) (...) Unable to identify CD-ROM format.
I can mount this disc with 'mount -o loop /dev/hdc /media/dvd' but I can see only the first session. Playing with 'mount -osession=...' doesn't work.
dmesg # (...) Invalid session number or type of track Invalid session number
Have you got any idea about this behaviour? Is it possible to access all sessions on this disc?
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