Different Confidence Levels

[PedroT99]

I don't understand something about Confidence Levels...big surprise, I know.

I don't get what the 4 different confidences below mean...20, 195, 11 and 85. I intially thought it was different versions of the disc but on many of them the pressing offset is the same. Here is the weird/concerning part. On EVERY album I have ripped, I never have the highest confidence and almost always have the lowest one...sometimes by a wide margin...below being an example.

Some are only a small difference...10 vs 17.

Track 1: Ripped LBA 0 to 19140 (4:15) in 0:20. Filename: C:\Users\Peter\Music\Janis Joplin\Janis Joplin's Greatest Hits\01 Janis Joplin - Piece of My Heart.flac
AccurateRip: Accurate (confidence 10) [Pass 1]
CRC32: FA0455E5 AccurateRip CRC: C053A9AA [DiscID: 010-000f0924-0077cb36-8509cc0a-1]
AccurateRip Verified Confidence 10 [CRCv1 c053a9aa]
AccurateRip Verified Confidence 2 [CRCv2 6c249c61], Using Pressing Offset +1251
AccurateRip Verified Confidence 17 [CRCv1 43bafcad], Using Pressing Offset +1251
AccurateRip Verified Confidence 16 [CRCv1 c8e840fb], Using Pressing Offset +961

Others are a huge difference...20 vs. 195

Track 1: Ripped LBA 0 to 16595 (3:41) in 0:24. Filename: C:\Users\Peter\Music\Disturbed\Believe\01 Disturbed - Prayer.flac
AccurateRip: Accurate (confidence 20) [Pass 1]
CRC32: B51AC9E4 AccurateRip CRC: A763E31B (CRCv2) [DiscID: 012-001618ef-00d23676-9f0e820d-1]
AccurateRip Verified Confidence 20 [CRCv2 a763e31b]
AccurateRip Verified Confidence 195 [CRCv1 4d480d4b]
AccurateRip Verified Confidence 11 [CRCv2 19bb44c0], Using Pressing Offset -787
AccurateRip Verified Confidence 85 [CRCv1 dd4a1478], Using Pressing Offset -787

or this one...

Track 1: Ripped LBA 32 to 23360 (5:11) in 0:27. Filename: C:\Users\Peter\Music\Fleetwood Mac\The Dance\01 Fleetwood Mac - The Chain.flac
AccurateRip: Accurate (confidence 20) [Pass 1]
CRC32: 10598258 AccurateRip CRC: 7B1B668C (CRCv2) [DiscID: 017-0032122c-02737def-eb129211-1]
AccurateRip Verified Confidence 20 [CRCv2 7b1b668c]
AccurateRip Verified Confidence 194 [CRCv1 2605f7a3]
AccurateRip Verified Confidence 5 [CRCv2 4d8ea089], Using Pressing Offset -434
AccurateRip Verified Confidence 20 [CRCv1 41bd782], Using Pressing Offset -434

Are they different pressings? And if so...is it possible out about 150 discs ripped so far, I have NEVER been in the group with the highest confidence? It seems that likelihood of that being coincidence it improbable.

[Spoon]

Re: Different Confidence Levels

They are different pressings, and your rip has verified against all of them, including the high confidence ones...

[PedroT99]

Re: Different Confidence Levels

Thanks! good to know that they are all good. Just for my own curiosity...why would I literally never have a high-confidence pressing? Could it be a geographic thing as it relates to distribution of product vs. users of AccurateRip I'm in the US. Out of 200+ CDs, I found one where I my pressing was in the higher confidence group. Just seems odd. I know the rips are good...just curious.

[Spoon]

Re: Different Confidence Levels

v2 CRC is better so is used in preference to a v1 CRC (which has the higher confidence).