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Thread: CRC Mismatches

  1. #1
    Registered User Grünschnabel
    Join Date
    Jan 2005
    Ort
    Australia
    Posts
    14

    CRC Mismatches

    Here are two cases where EAC's algorithms have failed:

    Code:
    EAC extraction logfile from 19. November 2002, 21:16 for CD
    Phil Collins / In The Air Tonight -  Single
    
    Used drive  : TOSHIBA DVD-ROM SD-M1612   Adapter: 2  ID: 1
    Read mode   : Secure with NO C2, accurate stream, disable cache
    Read offset correction : 0
    Overread into Lead-In and Lead-Out : No
    
    Used output format : mppenc.exe   (User Defined Encoder)
                         224 kBit/s
                         Additional command line options : --quality 7 --xlevel --artist "%a" --title "%t" --album "%g" --year "%y" --track "%n" --genre "%m" %s %d
                         Use compression offset : 0
    
    Other options      : 
        Fill up missing offset samples with silence : Yes
        Delete leading and trailing silent blocks : No
        Installed external ASPI interface
    
    
    Track  1
         Filename 01-In The Air Tonight (Extended Version).mpc
    
       Pre-gap length  0:00:02.00
    
       Peak level 100.0 %
       Track quality 99.7 %
       Test CRC A2A28844
       Copy CRC 11C9751E
       Copy OK
    
    Track  2
         Filename 02-In The Air Tonight ( '88 Remix).mpc
    
       Pre-gap length  0:00:02.77
    
       Peak level 100.0 %
       Track quality 99.6 %
       Test CRC 570BFEBE
       Copy CRC 0EF29573
       Copy OK
    
    Track  3
         Filename 03-I Missed Again.mpc
    
       Pre-gap length  0:00:03.53
    
       Peak level 94.9 %
       Track quality 99.3 %
       Test CRC A540F00A
       Copy CRC 4D724071
       Copy OK
    
    No errors occured
    
    
    End of status report
    Code:
    EAC extraction logfile from 9. January 2004, 18:55 for CD
    Fabolous / Into You
    
    Used drive  : PLEXTOR CD-R   PX-W2410A   Adapter: 1  ID: 0
    Read mode   : Secure with NO C2, accurate stream, disable cache
    Read offset correction : 98
    Overread into Lead-In and Lead-Out : Yes
    
    Used output format : mppenc 1.15r.exe   (User Defined Encoder)
                         224 kBit/s
                         Additional command line options : --quality 7 --xlevel --verbose --stderr C:\MPC_LOG.txt --ape2 --artist "%a" --title "%t" --album "%g" --releasedate "%y" --track "%n" --genre "%m"  %s %d
    
    Other options      : 
        Fill up missing offset samples with silence : Yes
        Delete leading and trailing silent blocks : No
        Installed external ASPI interface
    
    
    Track  1
         Filename 01-Into You (feat. Tamia) (Amended Version).mpc
    
         Pre-gap length  0:00:02.00
    
         Peak level 99.1 %
         Track quality 100.0 %
         Test CRC 848B4453
         Copy CRC 848B4453
         Copy OK
    
    Track  2
         Filename 02-Into You (feat. Tamia) (Explicit Version).mpc
    
         Pre-gap length  0:00:02.00
    
         Peak level 92.2 %
         Track quality 99.9 %
         Test CRC 38BB2D5F
         Copy CRC 38BB2D5F
         Copy OK
    
    Track  3
         Filename 03-Young'n (Explicit Version).mpc
    
         Pre-gap length  0:00:02.00
    
         Peak level 100.0 %
         Track quality 100.0 %
         Test CRC 00CDA2FB
         Copy CRC 00CDA2FB
         Copy OK
    
    Track  4
         Filename 04-Keepin' It Gangsta (Explicit Version).mpc
    
         Pre-gap length  0:00:02.00
    
         Peak level 100.0 %
         Track quality 100.0 %
         Test CRC D6884B90
         Copy CRC BDE7C732
         Copy OK
    
    No errors occured
    
    
    End of status report

  2. #2
    Registered User Senior Member (Board-Inventar)
    Join Date
    Jan 2005
    Ort
    Denmark
    Posts
    600
    EACs secure mode has never promised to be 100% accurate so we can expect crc mismatches once in a while but 3 times in a row, thats disturbing...-Martin.
    Last edited by Martin on 03-03-2005 at 07:35

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