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Topic: Know a posteriori the offset correction used for a rip (Read 3352 times) previous topic - next topic
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Know a posteriori the offset correction used for a rip

Hello.

Is it possible to know with which offset correction an original audio source has been dumped?

I'm currently verifying my entire FLAC collection against AccurateRip database using CueTools 2.0.6, and I've come across some logs that show the dump would only match 100% AccurateRip database if they were dumped with a determined offset:

Code: [Select]
[Verification date: 11/04/2010 13:46:07]
[Disc ID: 000e7d68-007589c9-7709030a]
Track    [ CRC    ] Status
 01    [d1a884ce] (00/48) No match
 02    [5db99da0] (00/49) No match
 03    [0e7c46bd] (00/49) No match
 04    [aa93ed87] (00/47) No match
 05    [47a25b03] (00/49) No match
 06    [76336126] (00/49) No match
 07    [1137f6d6] (00/49) No match
 08    [02c25869] (00/49) No match
 09    [d8fee511] (00/49) No match
 10    [3ae4d5ff] (00/48) No match
Offsetted by 571:
 01    [1db675a7] (12/48) Accurately ripped
 02    [3adfa562] (12/49) Accurately ripped
 03    [f01a2016] (12/49) Accurately ripped
 04    [a77c4c7a] (12/47) Accurately ripped
 05    [e0790cbc] (12/49) Accurately ripped
 06    [97e7e3a3] (12/49) Accurately ripped
 07    [aa342759] (12/49) Accurately ripped
 08    [0049ef9f] (12/49) Accurately ripped
 09    [06008dc3] (12/49) Accurately ripped
 10    [d85e7061] (12/48) Accurately ripped
Offsetted by 261:
 01    [6186dabd] (02/48) Accurately ripped
 02    [80bc2178] (02/49) Accurately ripped
 03    [4f25085b] (02/49) Accurately ripped
 04    [434b7906] (02/47) No match but offset
 05    [94e52ac7] (02/49) Accurately ripped
 06    [19379190] (02/49) Accurately ripped
 07    [15bd40cd] (02/49) Accurately ripped
 08    [bb083c01] (02/49) Accurately ripped
 09    [5ed6e51d] (02/49) Accurately ripped
 10    [2a58bf59] (02/48) Accurately ripped

Track    [ CRC32  ]    [W/O NULL]    [  LOG   ]
 --    [A2B01ABD]    [9594C770]     W/O NULL 
 01    [5B83B54D]    [A3A853CB]    
 02    [7642E3DF]    [B50A367F]    
 03    [1A8AB2BF]    [9442D2AA]    
 04    [4FAF85FF]    [89746F8E]    
 05    [F8F92779]    [8E0E4432]    
 06    [702A2A1A]    [E23B2423]    
 07    [ED5519F4]    [A424823A]    
 08    [D4F5CA0F]    [E239DE38]    
 09    [F24E6296]    [B5482DE6]    
 10    [4FA472F3]    [9978092D]


For example, in this case only having used +571 would have made it perfect. In my case I know that was the offset used as I was the original dumper and own the EAC 0.99pb5 log of it. But I'd like to make sure myself as it's very easy to forge logs so as to make them more accurate than they originally were.

And a side related question, is it possible to extract the CRC of an audio file? If so, with which program? Do I need to have the log/cue (or both) files previous to it?

Thanks a bunch.

Know a posteriori the offset correction used for a rip

Reply #2 –
Quote from: greynol on
Buy the disc and you don't have to be concerned about it.


Thanks greynol.

And what about the second question?

Can that "No match but offset" entry on the +261 dump be corrected somehow? I haven't found the option on CueTools 2.0.6.

Thanks again ;D

Know a posteriori the offset correction used for a rip

Reply #3 –
If you somehow managed to correct track 4 to be accurate for the offset of 261, it would no longer have a match for the offset of 571.  Just food for thought.
 

Know a posteriori the offset correction used for a rip

Reply #4 –
Quote from: greynol on
If you somehow managed to correct track 4 to be accurate for the offset of 261, it would no longer have a match for the offset of 571.  Just food for thought.


lol, true. Sorry, I didn't realise.

Last question  I'd like to know if anyone can answer the first question asked:

Is it possible to know with which offset correction an original audio source has been dumped?

And if so, how?

Thanks for the help!