[mofonyx]

Previously I posted the opposite :
http://www.head-fi.org/forums/f46/ac...ht=AccurateRip

So I'm back in Malaysia, I find a few of my albums that I didn't rip so accurately back then. I've decided to rerip some of them, however they seem to be scratched, just a bit.

EAC Test/Copy CRC shows that the file is fine, however AccurateRip cannot verify accuracy of the rip.

Code:

[left]------------------------------------------------------------ Exact Audio Copy V0.99 prebeta 3 from 28. July 2007 EAC extraction logfile from 11. April 2008, 12:55 Radiohead / Hail To The Thief Used drive : _NEC DVD+-RW ND-6650A Adapter: 1 ID: 0 Read mode : Secure Utilize accurate stream : Yes Defeat audio cache : No Make use of C2 pointers : No Read offset correction : 48 Overread into Lead-In and Lead-Out : No Fill up missing offset samples with silence : Yes Delete leading and trailing silent blocks : No Null samples used in CRC calculations : Yes Used interface : Native Win32 interface for Win NT & 2000 Gap handling : Appended to previous track Used output format : User Defined Encoder Selected bitrate : 1024 kBit/s Quality : High Add ID3 tag : No Command line compressor : E:\Program Files\FLAC\flac.exe Additional command line options : -6 -V -T "artist=%a" -T "title=%t" -T "album=%g" -T "date=%y" -T "tracknumber=%n" -T "genre=%m" -T comment="%e" -T "comment=EAC (Secure Mode)" %s TOC of the extracted CD Track | Start | Length | Start sector | End sector --------------------------------------------------------- 1 | 0:00.00 | 3:19.27 | 0 | 14951 2 | 3:19.27 | 4:19.73 | 14952 | 34449 3 | 7:39.25 | 4:18.27 | 34450 | 53826 4 | 11:57.52 | 5:22.45 | 53827 | 78021 5 | 17:20.22 | 3:21.38 | 78022 | 93134 6 | 20:41.60 | 4:29.22 | 93135 | 113331 7 | 25:11.07 | 4:56.53 | 113332 | 135584 8 | 30:07.60 | 3:32.02 | 135585 | 151486 9 | 33:39.62 | 5:23.45 | 151487 | 175756 10 | 39:03.32 | 1:59.35 | 175757 | 184716 11 | 41:02.67 | 4:57.25 | 184717 | 207016 12 | 46:00.17 | 3:52.40 | 207017 | 224456 13 | 49:52.57 | 3:21.53 | 224457 | 239584 14 | 53:14.35 | 3:21.25 | 239585 | 254684 15 | 59:07.60 | 14:50.15 | 266085 | 332849 Track 1 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\01-2 + 2 = 5 (The Lukewarm.).wav Pre-gap length 0:00:02.00 Peak level 98.4 % Track quality 100.0 % Test CRC 5E8EEC19 Copy CRC 5E8EEC19 Accurately ripped (confidence 13) [73EF41AD] Copy OK Track 2 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\02-Sit Down. Stand Up. (Snakes & Ladders.).wav Peak level 98.3 % Track quality 99.9 % Test CRC C11F8B9D Copy CRC C11F8B9D Accurately ripped (confidence 3) [D726D075] Copy OK Track 3 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\03-Sail to the Moon. (Brush the Cobwebs out of the Sky.).wav Peak level 98.3 % Track quality 99.9 % Test CRC B3752FCA Copy CRC B3752FCA Accurately ripped (confidence 14) [8F4DC431] Copy OK Track 4 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\04-Backdrifts. (Honeymoon Is Over.).wav Peak level 93.3 % Track quality 100.0 % Test CRC 353F80F5 Copy CRC 353F80F5 Accurately ripped (confidence 8) [5B53C846] Copy OK Track 5 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\05-Go to Sleep. (Little Man being Erased.).wav Peak level 98.4 % Track quality 100.0 % Test CRC DD919960 Copy CRC DD919960 Accurately ripped (confidence 7) [AF2A7839] Copy OK Track 6 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\06-Where I End and You Begin. (The Sky is Falling in.).wav Pre-gap length 0:00:00.34 Peak level 98.4 % Track quality 99.9 % Test CRC C6C57FF8 Copy CRC C6C57FF8 Cannot be verified as accurate (confidence 5) [818A66D3], AccurateRip returned [C6143A91] Copy OK Track 7 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\07-We suck Young Blood. (You Time is up.).wav Peak level 98.0 % Track quality 100.0 % Test CRC A629A6C9 Copy CRC A629A6C9 Cannot be verified as accurate (confidence 3) [827BB82C], AccurateRip returned [9C9FFFDA] Copy OK Track 8 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\08-The Gloaming. (Softly Open out Mouths in the Cold.).wav Peak level 98.3 % Track quality 100.0 % Test CRC 0E7B0B76 Copy CRC 0E7B0B76 Accurately ripped (confidence 4) [82D556E5] Copy OK Track 9 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\09-There there. (The Boney King of Nowhere.).wav Peak level 98.1 % Track quality 100.0 % Test CRC 9A94051D Copy CRC 9A94051D Accurately ripped (confidence 4) [86225627] Copy OK Track 10 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\10-I will. (No man's Land.).wav Pre-gap length 0:00:01.09 Peak level 83.1 % Track quality 100.0 % Test CRC FA6A34C8 Copy CRC FA6A34C8 Cannot be verified as accurate (confidence 4) [D289A4C9], AccurateRip returned [EFCDB538] Copy OK Track 11 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\11-A Punchup at a Wedding. (No no no no no no no no.).wav Peak level 98.6 % Track quality 100.0 % Test CRC 24A843A2 Copy CRC 24A843A2 Accurately ripped (confidence 7) [DC0BD326] Copy OK Track 12 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\12-Myxomatosis. (Judge, Jury & Executioner).wav Pre-gap length 0:00:00.84 Peak level 98.3 % Track quality 100.0 % Test CRC B499092A Copy CRC B499092A Accurately ripped (confidence 2) [CD7DF818] Copy OK Track 13 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\13-Scatterbrain. (As Dead as Leaves.).wav Pre-gap length 0:00:00.77 Peak level 98.4 % Track quality 99.8 % Test CRC AB221856 Copy CRC AB221856 Cannot be verified as accurate (confidence 3) [1B314F2D], AccurateRip returned [33FC8280] Copy OK Track 14 Filename E:\CD Re-rips\Radiohead\Hail To The Thief\14-A Wolf at the Door. (It Girl. Rag Doll.).wav Pre-gap length 0:00:00.96 Peak level 98.6 % Track quality 99.9 % Test CRC F7EECFD3 Copy CRC F7EECFD3 Accurately ripped (confidence 4) [329D2CEB] Copy OK 0 track(s) accurately ripped 4 track(s) could not be verified as accurate Some tracks could not be verified as accurate No errors occurred End of status report[/left]

What does this mean?

 

[Jaska]

When in doubt due to the disc not being in the AccurateRip database, I always rip the same CD with a different program using the same drive, with the same program using a different drive, etc. If you don't have any other secure ripping programs installed and configured, then foobar2000 is probably the quickest and easiest to set up. After configuring the audio CD ripper (by entering your drive's read offset and choosing the most accurate/paranoid ripping settings), you can just rip the disc to WAV files and check the console afterwards to see if there were any errors. Finally, you can take the files from each of the rips and convert them to a single WAV file with foobar2000, and lastly compare the two WAV files with EAC. If they match, the rip should be accurate. If they don't, you should have a precise information about the location of the damaged area of the disc, which you should then repair.

 

[mofonyx]

Jaska, that's hardcore paranoia man.

This CD is obviously on AccurateRip's database. It's Radiohead's Hail to the Thief!

I would like to understand what's going on before dismissing the rip of those few tracks entirely as inaccurate.

 

[Jaska]

Quote:

Originally Posted by mofonyx /img/forum/go_quote.gif Jaska, that's hardcore paranoia man.

That's how I do things. One of the drives in my PC is an NEC, and I can say with certainty that EAC lets a substantial percentage of "secure" rips through with this drive when indeed they prove to be inaccurate by further testing.

Quote:

This CD is obviously on AccurateRip's database. It's Radiohead's Hail to the Thief!

Do you have the copy controlled version?

 

[mofonyx]

Yes it's the copy controlled version.

Does it matter though?

 

[Jaska]

Quote:

Originally Posted by mofonyx /img/forum/go_quote.gif Yes it's the copy controlled version. Does it matter though?

Yes. Most CD readers can't accurately rip the disc properly, and if other users rip the disc and submit their results to the AR database, chances are that the intentional errors in the audio stream will be included in their output files (but in different ways depending on their CD readers), so verifying the integrity of the rip is a big challenge.

 

[mofonyx]

And I wouldn't get this with a non-copy controlled version I assume.

Okay well fair point. Figures why my Mariza album keeps giving me errors.

 

[rederanged]

I think it's because there are not enough data points in the AccurateRip database for EAC to be confident that the rip was good on that basis alone. The confidence number in parentheses after "Accurately Ripped" represents the degree of confidence based on the number of data points in the Accurate Rip database.

I'll admit that it is weird that a mainstream album like HTTT doesn't have enough data points in AccurateRip, though. Do you have an import version or something?

Anyway, it is not telling you that you got a bad rip, just that it can't be sure you got a good rip based solely on the information in the AccurateRip database. However, the fact that your test & copy CRCs match should indicate that your rip was, in fact, fine.