Опять про growisofs, бага какая-то...

From: Alex Bakhtin (2:5020/400)
To: All
Date: 2006-11-23T18:33:50Z
Area: RU.UNIX.BSD
From: Alex Bakhtin <bakhtin@amt.ru>

Привет.

        Двухслойки пишутся как-то странно, в два захода. Оно у всех так,
или это я такой везучий? 100% повторяемость.

==================================
> growisofs -dvd-compat -speed=2.4 -Z
> /dev/cd1=IMAGE.iso
Executing 'builtin_dd if=IMAGE.iso
of=/dev/pass1 obs=32k seek=0'
/dev/pass1: splitting layers at 1735376 blocks
:-[ SEND DVD+R DOUBLE LAYER RECORDING INFORMATION failed with
SK=5h/ASC=26h/ACQ=00h]: Input/output error
> sudo dvd+rw-mediainfo /dev/cd1
INQUIRY:                [_NEC    ][DVD_RW ND-3520A ][1.04]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         2Bh, DVD+R Double Layer
 Media ID:              MKM/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:     2.4x1385=3324KB/s@[0 -> 3470752]
 Speed Descriptor#0:    00/3470752 R@5.0x1385=6925KB/s W@4.0x1385=5540KB/s
 Speed Descriptor#1:    00/3470752 R@5.0x1385=6925KB/s W@2.4x1385=3324KB/s
DVD+R DOUBLE LAYER BOUNDARY INFORMATION:
 L0 Data Zone Capacity: 1735376*2KB, can no longer be set
READ DISC INFORMATION:
 Disc status:           blank
 Number of Sessions:    1
 State of Last Session: empty
 Number of Tracks:      1
READ TRACK INFORMATION[#1]:
 Track State:           blank
 Track Start Address:   0*2KB
 Next Writable Address: 0*2KB
 Free Blocks:           3470752*2KB
 Track Size:            3470752*2KB
 ROM Compatibility LBA: 262144
READ CAPACITY:          0*2048=0
>
> growisofs -dvd-compat -speed=2.4 -Z
> /dev/cd1=IMAGE.iso
Executing 'builtin_dd if=IMAGE.iso
of=/dev/pass1 obs=32k seek=0'
  11304960/7108100096 ( 0.2%) @1.6x, remaining 62:46 RBU 100.0%
  22740992/7108100096 ( 0.3%) @2.4x, remaining 46:44 RBU 100.0%
  34242560/7108100096 ( 0.5%) @2.4x, remaining 44:45 RBU 100.0%
  45711360/7108100096 ( 0.6%) @2.4x, remaining 41:11 RBU 100.0%
==================================

        При этом второй проход пишет на stderr еще что-то в духе "layer
break already set".

      Диски пишутся и читаются нормально, но вот эта идея двух проходов
меня лично как-то не особо радует. Как бы это победить?

        Имеем:
1. FreeBSD 6.2-PRERELEASE
2. 
> growisofs -version
* growisofs by <appro@fy.chalmers.se>, version 6.1.1,
  front-ending to mkisofs: mkisofs 2.01 (i386-unknown-freebsd6.2)

3.
> sudo dvd+rw-mediainfo /dev/cd1
INQUIRY:                [_NEC    ][DVD_RW ND-3520A ][1.04]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         2Bh, DVD+R Double Layer
 Media ID:              MKM/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:     2.4x1385=3324KB/s@[0 -> 3655648]
 Speed Descriptor#0:    00/3655648 R@5.0x1385=6925KB/s W@4.0x1385=5540KB/s
 Speed Descriptor#1:    00/3655648 R@5.0x1385=6925KB/s W@2.4x1385=3324KB/s
READ DVD STRUCTURE[#0h]:
 Media Book Type:       01h, DVD-ROM book [revision 1]
 Legacy lead-out at:    1895952*2KB=3882909696
DVD+R DOUBLE LAYER BOUNDARY INFORMATION:
 L0 Data Zone Capacity: 1895952*2KB, can no longer be set
READ DISC INFORMATION:
 Disc status:           complete
 Number of Sessions:    1
 State of Last Session: complete
 Number of Tracks:      1
READ TRACK INFORMATION[#1]:
 Track State:           partial/complete
 Track Start Address:   0*2KB
 Free Blocks:           0*2KB
 Track Size:            3655648*2KB
FABRICATED TOC:
 Track#1  :             17@0
 Track#AA :             17@3655648
 Multi-session Info:    #1@0
READ CAPACITY:          3655648*2048=7486767104
>

-- 
Best regards, Alex Bakhtin, CCIE #8439
AMT Group, Cisco Systems Gold Partner, http://www.amt.ru
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