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AccurateRip database confidence score, Moved from General Audio (TOS #6)
dave656
post Feb 13 2012, 13:33
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I'm trying to rip an audio cd with accuraterip database which results a confidence score of 128 out of 264 for each track. So, I'm confused how accurate is my rip? Because from that score it seems like it went nearly 50% accurate. Please let me know how should I check if I'm wrong.
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spoon
post Feb 13 2012, 14:21
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If there are 2 pressings in the database then a certain % would be for one, so it makes no real difference.


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dave656
post Feb 13 2012, 15:01
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Yes, there are two different pressings as follows:

Example:

CODE
Track   [ CRC    ] Status
01     [9f4cc9rc] (128/262) Accurately ripped
02     [b29fedbw] (132/266) Accurately ripped
03     [6bb7a493] (128/264) Accurately ripped

......

CODE
Offsetted by -8:
01     [e5cab2cc] (014/262) Accurately ripped
02     [c348c760] (014/266) Accurately ripped
03     [4fb038d3] (014/264) Accurately ripped

.....


The number of pressings seems incomplete or am i missing something?

This post has been edited by dave656: Feb 13 2012, 15:07
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pdq
post Feb 13 2012, 15:21
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Unless an unusual number of people got inaccurate rips, there would seem to be even more pressings.
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Porcus
post Feb 13 2012, 16:01
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QUOTE (dave656 @ Feb 13 2012, 15:01) *
The number of pressings seems incomplete or am i missing something?


There are users who have scratched or defective discs and therefore get something unmatched. That's what AccurateRip is there for wink.gif

And also, there are users who only (attempt to) rip certain tracks.


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spoon
post Feb 13 2012, 17:36
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Rips from Scratches would not appear in the database, as 2 submissions are required to enter the database.

The 'other pressing' will be AccurateRip v2 which possibly your program is not capable of looking against.


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dave656
post Feb 14 2012, 03:39
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I see. So, are those two pressings different for each CD/DVD Drive? For example: A user with a certain drive has a score of (128/262) and other user with a score of (014/262). I'm confused if both pressings are accurate then why is the CRC is different in two pressings for same audio files?
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Porcus
post Feb 14 2012, 07:36
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QUOTE (dave656 @ Feb 14 2012, 03:39) *
I see. So, are those two pressings different for each CD/DVD Drive? For example: A user with a certain drive has a score of (128/262) and other user with a score of (014/262). I'm confused if both pressings are accurate then why is the CRC is different in two pressings for same audio files?


One master file is sent to two pressing plants.

Each of these burn their own master disc. Each of their burners use a different offset. The master discs differ, but only in offset; they got the same table of contents.

AccurateRip's IDs are TOC based. They will show up as same disc.

Now 14 persons buy pressing #1, rip and submit. 128 persons buy pressing #2, rip and submit. 14 persons have gotten result #1. 128 persons have gotten result #2. The fact that 128 (indeed, 248) persons have gotten a different result from #1, does not make the #1's any worse it is simply because their discs differ. And with more recent tools built after one became more aware of the multiple pressings issue, you can even use the other pressings to verify even though they are technically different.

This post has been edited by Porcus: Feb 14 2012, 07:40


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