Hi, I just searched for doublons/clones in my flac collection with cuetools & CloneSpy (a clone finder software) & I happened to find something strange: a clone with an overall different checksum (so technically CloneSpy doesn't detect it as a clone) [Edit: My collection is only made CDImage.flac] but with all matching checksums against the accuraterip database & with a very high confidence for all tracks. So the data is obviously the same ... but there is a problem: the CRC for track 1 with or without silence at the end of the log doesn't match, hence the overall checksum difference & the non detection as an exact clone by CloneSpy. So my question is: am I right to interpret this situation as a non-detected scratch (or truncated audio) in one of the 2 rips ? I mean a scratch (or truncated audio) located in the 5 first frames of the rip which accuraterip might ignore ? (I know AR ignore the last 2940 samples but does it also ignore the first 2940 samples which might be the problematic part in my case). Is my interpretation of the problem right ? or is there another explanation ?
Here is a copy/paste zoom in the problematic part of the logs:
Log1: All tracks accurate
Track [ CRC32 ] [W/O NULL]
-- [BB8A18D4] [C665239A]
01 [52E2E723] [303E0CCB]
Log2: All tracks accurate same checksums for individual tracks in the beginning except at the end:
Track [ CRC32 ] [W/O NULL]
-- [C96571CF] [212E440F]
01 [D84FE9DB] [13FF4095]
Here are the full cuetools logs:
[Verification date: 19/04/2010 22:51:27]
[Disc ID: 0014baf9-00b63a6b-a20c650b]
Track [ CRC ] Status
01 [56227f15] (130/227) Accurately ripped
02 [1a28dd82] (129/226) Accurately ripped
03 [6116e989] (128/224) Accurately ripped
04 [1ee3eb35] (130/226) Accurately ripped
05 [9b0f8709] (129/226) Accurately ripped
06 [6731bd99] (129/224) Accurately ripped
07 [2127ab0e] (130/225) Accurately ripped
08 [d6d7a06d] (129/223) Accurately ripped
09 [0940c3c4] (129/223) Accurately ripped
10 [9f0066c1] (131/224) Accurately ripped
11 [b372f2be] (127/219) Accurately ripped
Offsetted by -669:
01 [24323cd0] (92/227) Accurately ripped
02 [ee621a53] (95/226) Accurately ripped
03 [085e2055] (94/224) Accurately ripped
04 [3887918a] (94/226) Accurately ripped
05 [527338a1] (95/226) Accurately ripped
06 [1326e7e5] (93/224) Accurately ripped
07 [5c9d3731] (90/225) Accurately ripped
08 [212cde25] (89/223) Accurately ripped
09 [55786f8a] (92/223) Accurately ripped
10 [d05af285] (88/224) Accurately ripped
11 [344ff140] (87/219) Accurately ripped
Offsetted by -664:
01 [c47bf19e] (02/227) Accurately ripped
02 [1f296cf7] (02/226) Accurately ripped
03 [e964ac04] (02/224) Accurately ripped
04 [1c74678b] (02/226) Accurately ripped
05 [447707e9] (02/226) Accurately ripped
06 [2daa732f] (02/224) Accurately ripped
07 [06726fee] (02/225) Accurately ripped
08 [855005de] (02/223) Accurately ripped
09 [84fdb1e5] (02/223) Accurately ripped
10 [e48a9fd2] (02/224) Accurately ripped
11 [a0d957ca] (02/219) Accurately ripped
Track [ CRC32 ] [W/O NULL]
-- [BB8A18D4] [C665239A]
01 [52E2E723] [303E0CCB]
02 [3898BA23] [EC67745A]
03 [298AA727] [B5195132]
04 [E1B43F46] [CFA333F1]
05 [2B362BD5] [BCA7E87C]
06 [A7D2A800] [54FD2C90]
07 [9FB44339] [6E321D61]
08 [C256DF0E] [A744BA17]
09 [721A93ED] [643A858C]
10 [380C3FD2] [8B338E6B]
11 [9B821032] [E0D42D60]
[Verification date: 19/04/2010 22:56:03]
[Disc ID: 0014baf9-00b63a6b-a20c650b]
Track [ CRC ] Status
01 [56227f15] (130/227) Accurately ripped
02 [1a28dd82] (129/226) Accurately ripped
03 [6116e989] (128/224) Accurately ripped
04 [1ee3eb35] (130/226) Accurately ripped
05 [9b0f8709] (129/226) Accurately ripped
06 [6731bd99] (129/224) Accurately ripped
07 [2127ab0e] (130/225) Accurately ripped
08 [d6d7a06d] (129/223) Accurately ripped
09 [0940c3c4] (129/223) Accurately ripped
10 [9f0066c1] (131/224) Accurately ripped
11 [b372f2be] (127/219) Accurately ripped
Offsetted by -669:
01 [24323cd0] (92/227) Accurately ripped
02 [ee621a53] (95/226) Accurately ripped
03 [085e2055] (94/224) Accurately ripped
04 [3887918a] (94/226) Accurately ripped
05 [527338a1] (95/226) Accurately ripped
06 [1326e7e5] (93/224) Accurately ripped
07 [5c9d3731] (90/225) Accurately ripped
08 [212cde25] (89/223) Accurately ripped
09 [55786f8a] (92/223) Accurately ripped
10 [d05af285] (88/224) Accurately ripped
11 [344ff140] (87/219) Accurately ripped
Offsetted by -664:
01 [c47bf19e] (02/227) Accurately ripped
02 [1f296cf7] (02/226) Accurately ripped
03 [e964ac04] (02/224) Accurately ripped
04 [1c74678b] (02/226) Accurately ripped
05 [447707e9] (02/226) Accurately ripped
06 [2daa732f] (02/224) Accurately ripped
07 [06726fee] (02/225) Accurately ripped
08 [855005de] (02/223) Accurately ripped
09 [84fdb1e5] (02/223) Accurately ripped
10 [e48a9fd2] (02/224) Accurately ripped
11 [a0d957ca] (02/219) Accurately ripped
Track [ CRC32 ] [W/O NULL]
-- [C96571CF] [212E440F]
01 [D84FE9DB] [13FF4095]
02 [3898BA23] [EC67745A]
03 [298AA727] [B5195132]
04 [E1B43F46] [CFA333F1]
05 [2B362BD5] [BCA7E87C]
06 [A7D2A800] [54FD2C90]
07 [9FB44339] [6E321D61]
08 [C256DF0E] [A744BA17]
09 [721A93ED] [643A858C]
10 [380C3FD2] [8B338E6B]
11 [9B821032] [E0D42D60]
Note:
The album is Pantera - 1992 - Vulgar Display Of Power original pressing
& I know that:
Track [ CRC32 ] [W/O NULL]
-- [BB8A18D4] [C665239A]
01 [52E2E723] [303E0CCB]
is the good checksum if one of the 2 is bad. (I compared my own rip with several 3rd party rips as I own the CD ... it's one of the best heavy metal album of all time)
So the question is not which one is the good rip but rather what is happening technically & why a rip which, at first look, is perfectly accurate rip is in fact maybe damaged.
I am worried because it was one of the very first doublon I found ... so it might not be such an exception ... I am scarred to search further now ...
Edit: By the way, we need an april update of the database Spoon