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Topic: EAC Rerip Testing (Read 2974 times) previous topic - next topic
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EAC Rerip Testing

My goal is to correctly archive my CDs to flac w/cue as some are getting nearly 20 years old and I think will be subject to degradation of the materials at some point.  Most are out of print copies, and I wish to save them before it is too late.

However I am a bit concerned about copies (obtained elsewhere) which were made using EAC and show a successful log file (as far as AccurateRip reporting tracks are accurately ripped with a confidence level) - yet when a CD is burned and reripped using Hydrogenaudio recommended settings, AccurateRip Test/Copy CRCs match each other but are different from the original log file, and AccurateRip reports that it cannot find the tracks in its database.  It does not seem that the copy made from the EAC cue and flac files is an exact copy as it should be.  What is upsetting is that this seems to be the case with about 75% of the CDs that were ripped by someone else.

Yes, I have done the obvious and determined/checked my write offset several times and have written disks using two different drives.

Yes, I can rip CDs myself using EAC (verified by AccurateRip), write the files to a CD using a different drive, and then rerip - getting exactly the same AccurateRip results.

Problem is.....  do I believe my own rerip test?  Will I find out later that I cannot regenerate my own CDs for some reason like using a different computer or a different version of EAC?

It occurs to me that if EAC settings are screwed up by multiple people who submit them to AccurateRip - then AccurateRip becomes inaccurate.  Is this true?

Am I expecting too much to have copies of CDs ripped by someone else be able to generate the same AccurateRip results when I rip them?  Any ideas?  I have carefully configured EAC using the Hydrogenaudio wikis on the subject.  Can anyone verify my EAC settings as correct?

Examples of my log and cue files are attached.

Sony DRU810A is the drive use to rip both original CD and the copy CD
Lite-on LH-20A1H with Write Offset of -6 is used for writing the copy CD

Here is my cue file:

Code: [Select]
REM GENRE Rock
REM DATE 1988
REM DISCID 760A1309
REM COMMENT "ExactAudioCopy v0.99pb5"
PERFORMER "Ozzy Osbourne"
TITLE "No Rest For The Wicked (1995 Remaster EK 67241)"
FILE "01 Miracle Man.wav" WAVE
  TRACK 01 AUDIO
    TITLE "Miracle Man"
    PERFORMER "Ozzy Osbourne"
    INDEX 01 00:00:00
FILE "02 Devil's Daughter.wav" WAVE
  TRACK 02 AUDIO
    TITLE "Devil's Daughter"
    PERFORMER "Ozzy Osbourne"
    FLAGS DCP
    INDEX 01 00:00:00
FILE "03 Crazy Babies.wav" WAVE
  TRACK 03 AUDIO
    TITLE "Crazy Babies"
    PERFORMER "Ozzy Osbourne"
    FLAGS DCP
    INDEX 01 00:00:00
  TRACK 04 AUDIO
    TITLE "Breaking All The Rules"
    PERFORMER "Ozzy Osbourne"
    FLAGS DCP
    INDEX 00 04:12:65
FILE "04 Breaking All The Rules.wav" WAVE
    INDEX 01 00:00:00
FILE "05 Bloodbath In Paradise.wav" WAVE
  TRACK 05 AUDIO
    TITLE "Bloodbath In Paradise"
    PERFORMER "Ozzy Osbourne"
    FLAGS DCP
    INDEX 01 00:00:00
FILE "06 Fire In The Sky.wav" WAVE
  TRACK 06 AUDIO
    TITLE "Fire In The Sky"
    PERFORMER "Ozzy Osbourne"
    FLAGS DCP
    INDEX 01 00:00:00
FILE "07 Tattooed Dancer.wav" WAVE
  TRACK 07 AUDIO
    TITLE "Tattooed Dancer"
    PERFORMER "Ozzy Osbourne"
    FLAGS DCP
    INDEX 01 00:00:00
  TRACK 08 AUDIO
    TITLE "Demon Alcohol"
    PERFORMER "Ozzy Osbourne"
    FLAGS DCP
    INDEX 00 03:51:63
FILE "08 Demon Alcohol.wav" WAVE
    INDEX 01 00:00:00
  TRACK 09 AUDIO
    TITLE "Hero (Bonus Track)"
    PERFORMER "Ozzy Osbourne"
    FLAGS DCP
    INDEX 00 04:26:10
FILE "09 Hero (Bonus Track).wav" WAVE
    INDEX 01 00:00:00

Here is the original log file:

Code: [Select]
Exact Audio Copy V0.99 prebeta 5 from 4. May 2009

EAC extraction logfile from 22. May 2010, 19:08

Ozzy Osbourne / No Rest For The Wicked (1995 Remaster EK 67241)

Used drive  : SONY    DVD RW DRU-810A   Adapter: 0  ID: 2

Read mode               : Secure
Utilize accurate stream : Yes
Defeat audio cache      : Yes
Make use of C2 pointers : No

Read offset correction                      : 618
Overread into Lead-In and Lead-Out          : No
Fill up missing offset samples with silence : Yes
Delete leading and trailing silent blocks   : No
Null samples used in CRC calculations       : Yes
Used interface                              : Native Win32 interface for Win NT & 2000
Gap handling                                : Appended to previous track

Used output format              : User Defined Encoder
Selected bitrate                : 1024 kBit/s
Quality                         : High
Add ID3 tag                     : No
Command line compressor         : C:\Program Files\FLAC\flac.exe
Additional command line options : -T "artist=%a" -T "title=%t" -T "album=%g" -T "date=%y" -T "tracknumber=%n" -T "genre=%m" -5 %s


TOC of the extracted CD

     Track |   Start  |  Length  | Start sector | End sector 
    ---------------------------------------------------------
        1  |  0:00.00 |  3:43.35 |         0    |    16759   
        2  |  3:43.35 |  5:14.32 |     16760    |    40341   
        3  |  8:57.67 |  4:14.38 |     40342    |    59429   
        4  | 13:12.30 |  5:12.60 |     59430    |    82889   
        5  | 18:25.15 |  5:01.72 |     82890    |   105536   
        6  | 23:27.12 |  6:24.30 |    105537    |   134366   
        7  | 29:51.42 |  3:53.23 |    134367    |   151864   
        8  | 33:44.65 |  4:27.32 |    151865    |   171921   
        9  | 38:12.22 |  4:47.33 |    171922    |   193479   


Track  1

     Filename D:\Ozzy Osbourne 1988 No Rest For The Wicked (1995 Remaster EK 67241)\01 Miracle Man.wav

     Pre-gap length  0:00:02.00

     Peak level 97.7 %
     Track quality 99.9 %
     Test CRC 3C0D0131
     Copy CRC 3C0D0131
     Accurately ripped (confidence 8)  [795FBDFA]
     Copy OK

Track  2

     Filename D:\Ozzy Osbourne 1988 No Rest For The Wicked (1995 Remaster EK 67241)\02 Devil's Daughter.wav

     Peak level 97.7 %
     Track quality 99.9 %
     Test CRC 6E18D2D3
     Copy CRC 6E18D2D3
     Accurately ripped (confidence 8)  [C7A2176A]
     Copy OK

Track  3

     Filename D:\Ozzy Osbourne 1988 No Rest For The Wicked (1995 Remaster EK 67241)\03 Crazy Babies.wav

     Peak level 97.7 %
     Track quality 100.0 %
     Test CRC 7FEE2E8A
     Copy CRC 7FEE2E8A
     Accurately ripped (confidence 8)  [5840D52A]
     Copy OK

Track  4

     Filename D:\Ozzy Osbourne 1988 No Rest For The Wicked (1995 Remaster EK 67241)\04 Breaking All The Rules.wav

     Pre-gap length  0:00:01.48

     Peak level 97.7 %
     Track quality 99.9 %
     Test CRC 9B161DBB
     Copy CRC 9B161DBB
     Accurately ripped (confidence 8)  [EB3D1772]
     Copy OK

Track  5

     Filename D:\Ozzy Osbourne 1988 No Rest For The Wicked (1995 Remaster EK 67241)\05 Bloodbath In Paradise.wav

     Peak level 96.7 %
     Track quality 100.0 %
     Test CRC 588640E7
     Copy CRC 588640E7
     Accurately ripped (confidence 8)  [5021D6A5]
     Copy OK

Track  6

     Filename D:\Ozzy Osbourne 1988 No Rest For The Wicked (1995 Remaster EK 67241)\06 Fire In The Sky.wav

     Peak level 97.7 %
     Track quality 100.0 %
     Test CRC E45D26DB
     Copy CRC E45D26DB
     Accurately ripped (confidence 8)  [326958AF]
     Copy OK

Track  7

     Filename D:\Ozzy Osbourne 1988 No Rest For The Wicked (1995 Remaster EK 67241)\07 Tattooed Dancer.wav

     Peak level 100.0 %
     Track quality 100.0 %
     Test CRC DA622A2B
     Copy CRC DA622A2B
     Accurately ripped (confidence 8)  [6D519138]
     Copy OK

Track  8

     Filename D:\Ozzy Osbourne 1988 No Rest For The Wicked (1995 Remaster EK 67241)\08 Demon Alcohol.wav

     Pre-gap length  0:00:01.35

     Peak level 97.7 %
     Track quality 100.0 %
     Test CRC 0A95002B
     Copy CRC 0A95002B
     Accurately ripped (confidence 8)  [55E13120]
     Copy OK

Track  9

     Filename D:\Ozzy Osbourne 1988 No Rest For The Wicked (1995 Remaster EK 67241)\09 Hero (Bonus Track).wav

     Pre-gap length  0:00:01.22

     Peak level 97.7 %
     Track quality 100.0 %
     Test CRC 5D640D31
     Copy CRC 5D640D31
     Accurately ripped (confidence 8)  [357FCA8E]
     Copy OK


All tracks accurately ripped

No errors occurred

End of status report

Here is the rerip log file:

Code: [Select]
Exact Audio Copy V0.99 prebeta 5 from 4. May 2009

EAC extraction logfile from 1. June 2010, 19:39

Ozzy Osbourne / No Rest For The Wicked (1995 Remaster EK 67241)

Used drive  : SONY    DVD RW DRU-810A   Adapter: 0  ID: 2

Read mode               : Secure
Utilize accurate stream : Yes
Defeat audio cache      : Yes
Make use of C2 pointers : No

Read offset correction                      : 618
Overread into Lead-In and Lead-Out          : No
Fill up missing offset samples with silence : Yes
Delete leading and trailing silent blocks   : No
Null samples used in CRC calculations       : Yes
Used interface                              : Native Win32 interface for Win NT & 2000
Gap handling                                : Appended to previous track

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


TOC of the extracted CD

     Track |   Start  |  Length  | Start sector | End sector 
    ---------------------------------------------------------
        1  |  0:00.00 |  3:43.35 |         0    |    16759   
        2  |  3:43.35 |  5:14.32 |     16760    |    40341   
        3  |  8:57.67 |  4:14.38 |     40342    |    59429   
        4  | 13:12.30 |  5:12.60 |     59430    |    82889   
        5  | 18:25.15 |  5:01.72 |     82890    |   105536   
        6  | 23:27.12 |  6:24.30 |    105537    |   134366   
        7  | 29:51.42 |  3:53.23 |    134367    |   151864   
        8  | 33:44.65 |  4:27.32 |    151865    |   171921   
        9  | 38:12.22 |  4:47.33 |    171922    |   193479   


Track  1

     Filename D:\Test\01 Miracle Man.wav

     Pre-gap length  0:00:02.00

     Peak level 97.7 %
     Track quality 99.9 %
     Test CRC 3C0D0131
     Copy CRC 3C0D0131
     Accurately ripped (confidence 8)  [795FBDFA]
     Copy OK

Track  2

     Filename D:\Test\02 Devil's Daughter.wav

     Peak level 97.7 %
     Track quality 99.9 %
     Test CRC 6E18D2D3
     Copy CRC 6E18D2D3
     Accurately ripped (confidence 8)  [C7A2176A]
     Copy OK

Track  3

     Filename D:\Test\03 Crazy Babies.wav

     Peak level 97.7 %
     Track quality 100.0 %
     Test CRC 7FEE2E8A
     Copy CRC 7FEE2E8A
     Accurately ripped (confidence 8)  [5840D52A]
     Copy OK

Track  4

     Filename D:\Test\04 Breaking All The Rules.wav

     Pre-gap length  0:00:01.48

     Peak level 97.7 %
     Track quality 99.9 %
     Test CRC 9B161DBB
     Copy CRC 9B161DBB
     Accurately ripped (confidence 8)  [EB3D1772]
     Copy OK

Track  5

     Filename D:\Test\05 Bloodbath In Paradise.wav

     Peak level 96.7 %
     Track quality 100.0 %
     Test CRC 588640E7
     Copy CRC 588640E7
     Accurately ripped (confidence 8)  [5021D6A5]
     Copy OK

Track  6

     Filename D:\Test\06 Fire In The Sky.wav

     Peak level 97.7 %
     Track quality 100.0 %
     Test CRC E45D26DB
     Copy CRC E45D26DB
     Accurately ripped (confidence 8)  [326958AF]
     Copy OK

Track  7

     Filename D:\Test\07 Tattooed Dancer.wav

     Peak level 100.0 %
     Track quality 100.0 %
     Test CRC DA622A2B
     Copy CRC DA622A2B
     Accurately ripped (confidence 8)  [6D519138]
     Copy OK

Track  8

     Filename D:\Test\08 Demon Alcohol.wav

     Pre-gap length  0:00:01.35

     Peak level 97.7 %
     Track quality 100.0 %
     Test CRC 0A95002B
     Copy CRC 0A95002B
     Accurately ripped (confidence 8)  [55E13120]
     Copy OK

Track  9

     Filename D:\Test\09 Hero (Bonus Track).wav

     Pre-gap length  0:00:01.22

     Peak level 97.7 %
     Track quality 100.0 %
     Test CRC 5D640D31
     Copy CRC 5D640D31
     Accurately ripped (confidence 8)  [357FCA8E]
     Copy OK


All tracks accurately ripped

No errors occurred

End of status report

EAC Rerip Testing

Reply #1 –
OK - let me ask part of it in a different way and maybe I'll get an answer:

1.  I rip a CD to FLAC, using the correct EAC settings and I get an AccurateRip confidence level of say 18 (for example).
2.  I then burn a CD, using a different drive than the ripping drive.
3.  I then rerip the burned CD using the original drive and compare log files.

I think they should be exactly the same if all EAC settings (including write offset) are correct.

Is this a correct assumption?

By doing this rerip test, does this mean that any drive/computer (correctly set up) should be able to duplicate the same AccurateRip results when ripping a CD burned from my flac/cue files?





EAC Rerip Testing

Reply #2 –
Did you ever get a satisfactory response to your posts or, better still, did you manage to work it out for yourself? Why is it always the simple questions that go unanswered?

EAC Rerip Testing

Reply #3 –
Quote from: djcod on
Did you ever get a satisfactory response to your posts or, better still, did you manage to work it out for yourself? Why is it always the simple questions that go unanswered?

I worked it out for myself

Quote from: lmyer on
OK - let me ask part of it in a different way and maybe I'll get an answer:

1.  I rip a CD to FLAC, using the correct EAC settings and I get an AccurateRip confidence level of say 18 (for example).
2.  I then burn a CD, using a different drive than the ripping drive.
3.  I then rerip the burned CD using the original drive and compare log files.

I think they should be exactly the same if all EAC settings (including write offset) are correct.

Is this a correct assumption?

I have verified this is a correct assumption - I have compared log files while doing this many times now.

Quote
By doing this rerip test, does this mean that any drive/computer (correctly set up) should be able to duplicate the same AccurateRip results when ripping a CD burned from my flac/cue files?

Yes, I have verified that a different computer (EAC correctly set up) can duplicate the same AccurateRip results (and the other info in log files as well).  If you can't verify the same results, then EAC settings are not correct on one or both computers.  If someone else rips with wrong settings, it might be possible to match their settings from a log file and generate a good copy as long as the read offset was correct.  Two wrongs might sometimes be able to make a right.  Otherwise all bets are off.  I think some accuraterip results can be bogus if enough people make the same EAC configuation mistake.  Of course all of this means nothing if you don't care if the copy is not a bit for bit copy of the original.  It's not as easy as some might think.
 

EAC Rerip Testing

Reply #4 –
Quote from: djcod on
Why is it always the simple questions that go unanswered?

If I were to guess it's because of this:
Quote from: lmyer on
However I am a bit concerned about copies (obtained elsewhere)

(bolding mine)