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  #1  
Old 2005-06-29, 02:40 PM
pmonk's Avatar
pmonk pmonk is offline
510.95 GB/621.08 GB/1.22
 
Join Date: Nov 2004
EAC Question

I recently looked at the EAC log for a Stones show I acquired last year and the log states:

Track 1
Filename C:\WINDOWS\Desktop\Working\Music\Unknown_Artist01.wav

Peak level 100.0 %
Track quality 100.0 %
Test CRC 6E761969
Copy CRC 6E761969

Copy OK

Track 2
Filename C:\WINDOWS\Desktop\Working\Music\Unknown_Artist02.wav

Peak level 100.0 %
Track quality 100.0 %
Test CRC BFBB17A1
Copy CRC BFBB17A1

Copy OK

What exactly is that feature?????

Any light on the subject would be helpful!
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  #2  
Old 2005-06-29, 02:54 PM
Ted Ted is offline
You are TOO
2.08 GB/7.38 GB/3.55
 
Join Date: May 2005
Re: EAC Question

CRC is sort of the same thing as md5, st5, ffp, etc. It's a file verification process. It's best used on files 15MB and under. md5 is better suited (more accurate) on files larger than that. If using CRC on files larger than 15MB, there is a VERY SMALL chance that it could determine a file is ok, when it is not.

I haven't used EAC yet, but looking at your log, it looks like EAC creates a CRC hash for the file, then burns it (or rips it) and creates another hash to verify that the burn/rip was successful.

EDIT: Unlike ffp and st5, CRC verfies the whole file (like md5), not just the sound portion.
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  #3  
Old 2005-06-29, 03:29 PM
irishcrazy2005's Avatar
irishcrazy2005 irishcrazy2005 is offline
Yeah, that's a zebra donkey
110.97 GB/130.20 GB/1.17
 
Join Date: Nov 2004
Location: Berkeley, CA
Re: EAC Question

Ted is correct here. While most people choose to rip in secure mode using EAC, another method is to use test and copy in burst mode. This way the track rips at high speed two times and if the CRCs check out the same then the track is considered perfect (just as it would be if you get an error free rip in secure mode).

-Phil
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