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Forums > Работа с видео и аудио > как на разных приводах получить одинаковый CRC, with EAC


Posted by: k-dmitriy on 17-02-2007, 23:04
делал я релиз Topic Link: Парадуш - На одной прямой (http://netlab.e2k.ru/forum/index.php?showtopic=75495 еас в логе выдал ошибки, правда как я понял уже в области overread, не смертельно, стал переграбливать и на всех приводах, при различных параметрах CRC был всегда разный :fear2: итак

стандарт нетлаба:

CODE
EAC extraction logfile from 16. February 2007, 15:16 for CD
Unknown Artist / Unknown Title

Used drive  : ATAPI-CDROM-DRIVE-52MAX  Adapter: 1  ID: 1
Read mode  : Secure with NO C2, accurate stream, disable cache
Read offset correction : 30
Overread into Lead-In and Lead-Out : Yes

Used output format : Internal WAV Routines
                    44.100 Hz; 16 Bit; Stereo

Other options      :
    Fill up missing offset samples with silence : Yes
    Delete leading and trailing silent blocks : No
    Installed external ASPI interface


Range status and errors
Selected range
    Filename D:\CDImage.wav

    Suspicious position 0:44:27

    Peak level 98.8 %
    Range quality 99.9 %
    CRC EC203B10
    Copy finished

There were errors

End of status report
CODE
EAC extraction logfile from 15. February 2007, 11:36 for CD
Unknown Artist / Unknown Title

Used drive  : _NEC    DVD_RW ND-3520A  Adapter: 1  ID: 0
Read mode  : Secure with NO C2, accurate stream, disable cache
Read offset correction : 66
Overread into Lead-In and Lead-Out : Yes

Used output format : Internal WAV Routines
                    44.100 Hz; 16 Bit; Stereo

Other options      :
    Fill up missing offset samples with silence : Yes
    Delete leading and trailing silent blocks : No
    Installed external ASPI interface


Range status and errors
Selected range
    Filename D:\CDImage.wav

    Suspicious position 0:44:27

    Peak level 98.8 %
    Range quality 99.9 %
    CRC 489F70E5
    Copy finished

There were errors

End of status report
CODE
EAC extraction logfile from 15. February 2007, 19:54 for CD
Парадуш / На одной прямой

Used drive  : MATSHITADVD-RAM UJ-831S  Adapter: 1  ID: 0
Read mode  : Secure with NO C2, accurate stream, disable cache
Read offset correction : 132
Overread into Lead-In and Lead-Out : Yes

Used output format : Internal WAV Routines
                    44.100 Hz; 16 Bit; Stereo

Other options      :
    Fill up missing offset samples with silence : Yes
    Delete leading and trailing silent blocks : No
    Installed external ASPI interface


Range status and errors
Selected range
    Filename D:\CDImage.wav

    Suspicious position 0:44:27

    Peak level 98.8 %
    Range quality 99.9 %
    CRC 4804D1A2
    Copy finished

There were errors

End of status report

overread выключен:

CODE
EAC extraction logfile from 15. February 2007, 12:54 for CD
Unknown Artist / Unknown Title

Used drive  : ATAPI-CDROM-DRIVE-52MAX  Adapter: 1  ID: 1
Read mode  : Secure with NO C2, accurate stream, disable cache
Read offset correction : 30
Overread into Lead-In and Lead-Out : No

Used output format : Internal WAV Routines
                    44.100 Hz; 16 Bit; Stereo

Other options      :
    Fill up missing offset samples with silence : Yes
    Delete leading and trailing silent blocks : No
    Installed external ASPI interface


Range status and errors
Selected range
    Filename D:\CDImage.wav

    Peak level 98.8 %
    Range quality 99.9 %
    CRC 0158C61E
    Copy OK

No errors occured

End of status report
CODE
EAC extraction logfile from 15. February 2007, 14:51 for CD
Unknown Artist / Unknown Title

Used drive  : _NEC    DVD_RW ND-3520A  Adapter: 1  ID: 0
Read mode  : Secure with NO C2, accurate stream, disable cache
Read offset correction : 66
Overread into Lead-In and Lead-Out : No

Used output format : Internal WAV Routines
                    44.100 Hz; 16 Bit; Stereo

Other options      :
    Fill up missing offset samples with silence : Yes
    Delete leading and trailing silent blocks : No
    Installed external ASPI interface


Range status and errors
Selected range
    Filename D:\CDImage.wav

    Peak level 98.8 %
    Range quality 100.0 %
    CRC 28A9D714
    Copy OK

No errors occured

End of status report
CODE
EAC extraction logfile from 15. February 2007, 20:21 for CD
Парадуш / На одной прямой

Used drive  : MATSHITADVD-RAM UJ-831S  Adapter: 1  ID: 0
Read mode  : Secure with NO C2, accurate stream, disable cache
Read offset correction : 132
Overread into Lead-In and Lead-Out : No

Used output format : Internal WAV Routines
                    44.100 Hz; 16 Bit; Stereo

Other options      :
    Fill up missing offset samples with silence : Yes
    Delete leading and trailing silent blocks : No
    Installed external ASPI interface


Range status and errors
Selected range
    Filename D:\CDImage.wav

    Peak level 98.8 %
    Range quality 100.0 %
    CRC 2C0A29BE
    Copy OK

No errors occured

End of status report

без учета 0 семплов, без overread:

CODE
EAC extraction logfile from 16. February 2007, 14:07 for CD
Unknown Artist / Unknown Title

Used drive  : ATAPI-CDROM-DRIVE-52MAX  Adapter: 1  ID: 1
Read mode  : Secure with NO C2, accurate stream, disable cache
Read offset correction : 30
Overread into Lead-In and Lead-Out : No

Used output format : Internal WAV Routines
                    44.100 Hz; 16 Bit; Stereo

Other options      :
    Fill up missing offset samples with silence : Yes
    Delete leading and trailing silent blocks : No
    Installed external ASPI interface


Range status and errors
Selected range
    Filename D:\CDImage.wav

    Peak level 98.8 %
    Range quality 99.9 %
    CRC 8CAE9B7D
    Copy OK

No errors occured

End of status report
CODE
EAC extraction logfile from 15. February 2007, 16:31 for CD
Unknown Artist / Unknown Title

Used drive  : _NEC    DVD_RW ND-3520A  Adapter: 1  ID: 0
Read mode  : Secure with NO C2, accurate stream, disable cache
Read offset correction : 66
Overread into Lead-In and Lead-Out : No

Used output format : Internal WAV Routines
                    44.100 Hz; 16 Bit; Stereo

Other options      :
    Fill up missing offset samples with silence : Yes
    Delete leading and trailing silent blocks : No
    Installed external ASPI interface


Range status and errors
Selected range
    Filename D:\CDImage.wav

    Peak level 98.8 %
    Range quality 100.0 %
    CRC B3CCB8A4
    Copy OK

No errors occured

End of status report
CODE
EAC extraction logfile from 17. February 2007, 18:29 for CD
Парадуш / На одной прямой

Used drive  : MATSHITADVD-RAM UJ-831S  Adapter: 1  ID: 0
Read mode  : Secure with NO C2, accurate stream, disable cache
Read offset correction : 132
Overread into Lead-In and Lead-Out : No

Used output format : Internal WAV Routines
                    44.100 Hz; 16 Bit; Stereo

Other options      :
    Fill up missing offset samples with silence : Yes
    Delete leading and trailing silent blocks : No
    Installed external ASPI interface


Range status and errors
Selected range
    Filename D:\CDImage.wav

    Peak level 98.8 %
    Range quality 100.0 %
    CRC E5DC5D47
    Copy OK

No errors occured

End of status report

оффсеты я проверял по 5 раз, все время ЕАС выдавал одни и теже значения для каждого привода.
попробую в понедельник другой диск сграбить и поглядеть на результат, но все равно пока не понятно, если брать 3й случай когда чтения в overread областях нету, 0 семплы не считаются откуда могло взяться 3 разных значения :dunno:

Posted by: k-dmitriy on 19-02-2007, 13:42
проверил на другом диске - CRC совпали без вопросов с первого раза. мистический диск какой-то...

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