Yes. Popular CDs sometimes have dozens of pressings.
I ripped Tricky - "Knowle West Boy" on two drives (one on laptop - Sony DVD-ROM, one on my PC Teac CD-W540E) using dbpoweramp.
All rips are Accurately ripped (cuetools or dbpoweramp).
All rips have the same accuraterip confidence on all tracks and all AccurateRip CRCs match on all tracks.
All file CRCs match except the one on last track - but AccurateRip is OK on both rips of that last track.
If I binary compare two waves there is a small difference in the very end of the tracks.
EAC WAV compare says: different samples position 0:03:47.0777- 0:03:47.093 and total length of file is 0:03:47.0933.
The difference is that the Teac's file has all zeros (00) and Sony's has sometime zeros (00) and sometimes FF in this fragment of track.
Sony has reading offset +6
Teac has reading offset +686
When I rip with another drive - Samsung DVDRW (SH-S223L) that has the same reading offset (+6) as Sony then I get the same CRC as Sony.
All 3 drives have Reading into Lead-in or Lead-out unchecked in dbpoweramp
So my question:
1. Which drive should I trust ?
2. I think the difference is because of different reading offsets ?
3. Should I use the drive that can read into Lead-in or Lead-out ?
Teac:
dBpoweramp Release 13.5 Digital Audio Extraction Log from 28 maja 2010 7:45
Drive & Settings
----------------
Ripping with drive 'G: [TEAC - CD-W540E ]', Drive offset: 686, Overread Lead-in/out: No
AccurateRip: Active, Using C2: No, Cache: 149 KB, FUA Cache Invalidate: No
Pass 1 Drive Speed: Max, Pass 2 Drive Speed: Max
Ultra:: Vary Drive Speed: No, Min Passes: 1, Max Passes: 6, Finish After Clean Passes: 2
Bad Sector Re-rip:: Drive Speed: Max, Maximum Re-reads: 34
Encoder: FLAC -compression-level-5
DSP Effects / Actions: -dspeffect1="ReplayGain=-albummode={qt}0{qt}"
Extraction Log
--------------
Track 1: Ripped LBA 0 to 16088 (3:34) in 0:19. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\01 - Puppy Toy.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: 5200701B AccurateRip CRC: 9562D7E8 [DiscID: 013-00157f19-00d88ab7-b80ac80d-1]
Track 2: Ripped LBA 16088 to 33441 (3:51) in 0:17. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\02 - Bacative.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: 35E1655E AccurateRip CRC: 1F22335A [DiscID: 013-00157f19-00d88ab7-b80ac80d-2]
Track 3: Ripped LBA 33441 to 44610 (2:28) in 0:09. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\03 - Joseph.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: CBE11D6F AccurateRip CRC: 461FC379 [DiscID: 013-00157f19-00d88ab7-b80ac80d-3]
Track 4: Ripped LBA 44610 to 58109 (2:59) in 0:11. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\04 - Veronika.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: 0E67E937 AccurateRip CRC: 14ECFA76 [DiscID: 013-00157f19-00d88ab7-b80ac80d-4]
Track 5: Ripped LBA 58109 to 71880 (3:03) in 0:11. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\05 - C'mon Baby.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: E4146EFE AccurateRip CRC: B498A85F [DiscID: 013-00157f19-00d88ab7-b80ac80d-5]
Track 6: Ripped LBA 71880 to 83839 (2:39) in 0:08. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\06 - Council Estate.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: DB193508 AccurateRip CRC: 52EB5B0C [DiscID: 013-00157f19-00d88ab7-b80ac80d-6]
Track 7: Ripped LBA 83839 to 106888 (5:07) in 0:17. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\07 - Past Mistake.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: E82F3F3F AccurateRip CRC: 784FBD12 [DiscID: 013-00157f19-00d88ab7-b80ac80d-7]
Track 8: Ripped LBA 106888 to 124792 (3:58) in 0:12. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\08 - Coalition.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: 539903DF AccurateRip CRC: 73030D29 [DiscID: 013-00157f19-00d88ab7-b80ac80d-8]
Track 9: Ripped LBA 124792 to 141710 (3:45) in 0:11. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\09 - Cross to Bear.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: 10AEFE14 AccurateRip CRC: DD367EC5 [DiscID: 013-00157f19-00d88ab7-b80ac80d-9]
Track 10: Ripped LBA 141710 to 156895 (3:22) in 0:09. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\10 - Slow.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: 79712B03 AccurateRip CRC: 0FD7DA7F [DiscID: 013-00157f19-00d88ab7-b80ac80d-10]
Track 11: Ripped LBA 156895 to 173565 (3:42) in 0:10. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\11 - Baligaga.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: 7EDD6438 AccurateRip CRC: EDBF97FE [DiscID: 013-00157f19-00d88ab7-b80ac80d-11]
Track 12: Ripped LBA 173565 to 189972 (3:38) in 0:10. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\12 - Far Away.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: 44210919 AccurateRip CRC: 1483A466 [DiscID: 013-00157f19-00d88ab7-b80ac80d-12]
Track 13: Ripped LBA 189972 to 207004 (3:47) in 0:10. Filename: D:\Images\FLAC\Tricky\Knowle West Boy (2008)\13 - School Gates.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: D612F9E6 AccurateRip CRC: D971FEFA [DiscID: 013-00157f19-00d88ab7-b80ac80d-13]
--------------
13 Tracks Ripped Accurately
Sony:
dBpoweramp Release 13.5 Digital Audio Extraction Log from 28 maja 2010 10:39
Drive & Settings
----------------
Ripping with drive 'D: [SONY - DVD-ROM DDU810A ]', Drive offset: 6, Overread Lead-in/out: No
AccurateRip: Active, Using C2: No, Cache: None, FUA Cache Invalidate: No
Pass 1 Drive Speed: Max, Pass 2 Drive Speed: Max
Bad Sector Re-rip:: Drive Speed: Max, Maximum Re-reads: 34
Encoder: FLAC -compression-level-5
DSP Effects / Actions: -dspeffect1="ReplayGain=-albummode={qt}0{qt}"
Extraction Log
--------------
Track 1: Ripped LBA 0 to 16088 (3:34) in 0:21. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\01 - Puppy Toy.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: 5200701B AccurateRip CRC: 9562D7E8 [DiscID: 013-00157f19-00d88ab7-b80ac80d-1]
Track 2: Ripped LBA 16088 to 33441 (3:51) in 0:45. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\02 - Bacative.flac
AccurateRip: Accurate (confidence 42) [Pass 1 & 2]
CRC32: 35E1655E AccurateRip CRC: 1F22335A [DiscID: 013-00157f19-00d88ab7-b80ac80d-2]
Track 3: Ripped LBA 33441 to 44610 (2:28) in 0:15. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\03 - Joseph.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: CBE11D6F AccurateRip CRC: 461FC379 [DiscID: 013-00157f19-00d88ab7-b80ac80d-3]
Track 4: Ripped LBA 44610 to 58109 (2:59) in 0:14. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\04 - Veronika.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: 0E67E937 AccurateRip CRC: 14ECFA76 [DiscID: 013-00157f19-00d88ab7-b80ac80d-4]
Track 5: Ripped LBA 58109 to 71880 (3:03) in 0:13. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\05 - C'mon Baby.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: E4146EFE AccurateRip CRC: B498A85F [DiscID: 013-00157f19-00d88ab7-b80ac80d-5]
Track 6: Ripped LBA 71880 to 83839 (2:39) in 0:11. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\06 - Council Estate.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: DB193508 AccurateRip CRC: 52EB5B0C [DiscID: 013-00157f19-00d88ab7-b80ac80d-6]
Track 7: Ripped LBA 83839 to 106888 (5:07) in 0:21. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\07 - Past Mistake.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: E82F3F3F AccurateRip CRC: 784FBD12 [DiscID: 013-00157f19-00d88ab7-b80ac80d-7]
Track 8: Ripped LBA 106888 to 124792 (3:58) in 0:34. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\08 - Coalition.flac
AccurateRip: Accurate (confidence 41) [Pass 1 & 2]
CRC32: 539903DF AccurateRip CRC: 73030D29 [DiscID: 013-00157f19-00d88ab7-b80ac80d-8]
Track 9: Ripped LBA 124792 to 141710 (3:45) in 0:13. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\09 - Cross to Bear.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: 10AEFE14 AccurateRip CRC: DD367EC5 [DiscID: 013-00157f19-00d88ab7-b80ac80d-9]
Track 10: Ripped LBA 141710 to 156895 (3:22) in 0:11. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\10 - Slow.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: 79712B03 AccurateRip CRC: 0FD7DA7F [DiscID: 013-00157f19-00d88ab7-b80ac80d-10]
Track 11: Ripped LBA 156895 to 173565 (3:42) in 0:12. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\11 - Baligaga.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: 7EDD6438 AccurateRip CRC: EDBF97FE [DiscID: 013-00157f19-00d88ab7-b80ac80d-11]
Track 12: Ripped LBA 173565 to 189972 (3:38) in 0:12. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\12 - Far Away.flac
AccurateRip: Accurate (confidence 41) [Pass 1]
CRC32: 44210919 AccurateRip CRC: 1483A466 [DiscID: 013-00157f19-00d88ab7-b80ac80d-12]
Track 13: Ripped LBA 189972 to 207004 (3:47) in 0:12. Filename: C:\Roger\Temp\!rip\Tricky\Knowle West Boy (2008)\13 - School Gates.flac
AccurateRip: Accurate (confidence 42) [Pass 1]
CRC32: 32C6944E AccurateRip CRC: D971FEFA [DiscID: 013-00157f19-00d88ab7-b80ac80d-13]
--------------
13 Tracks Ripped Accurately
Thanks