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Exact Audio Copy Question

Hello Everyone,
I am using EAC to copy my discs to the harddrive. My goal is to make bit perfect copies. I am saving the files in WAV format with no compression. The following text is taken from one of the log files created during the ripping process, and I am concerned that I may have something set incorrectly in EAC as reflected in the log file. Specifically, in the example given below note that track quality for track 10 is 100.0 % while track quality for track 11 is 99.9 %. This indicated to me that there must be errors in track 11, but at the end of the report, it says that there were no errors in the ripping of the CD. Can you help me understand what is meant by track quality? Also, does it appear that the settings listed at the beginning of the report are all correct for producing the most accurate possible copies?
Thanks in advance for your assistance.
All the best,
Dennis

EAC extraction logfile from 10. March 2006, 13:40 for CD
James Taylor / Greatest Hits

Used drive : MATSHITAUJDA710 Adapter: 1 ID: 0
Read mode : Secure with NO C2, accurate stream, NO disable cache
Read offset correction : 0
Overread into Lead-In and Lead-Out : No

Used output format : Internal WAV Routines
44.100 Hz; 16 Bit; Stereo

Other options :
Fill up missing offset samples with silence : Yes
Delete leading and trailing silent blocks : No
Native Win32 interface for Win NT & 2000

Track 10
Filename F:\james taylor - greatest hits\10 - Mexico.wav
Peak level 99.9 %
Track quality 100.0 %
Copy CRC 6846ED9D
Copy OK

Track 11
Filename F:\james taylor - greatest hits\11 - Shower The People.wav
Peak level 80.7 %
Track quality 99.9 %
Copy CRC 81237EB4
Copy OK

No errors occured
End of status report
dgclark0007

Showing 1 response by coffee_nudge

coffee_nudge
120 posts
 


No need to worry. Here is the explanation from the EAC manual:

A Track quality of 100% obviously means that the track was extracted 100% correct. But here's where some people make mistakes; sometimes EAC rereads certain audio sectors multiple times to get accurate extraction results. For every reread EAC does, the Track quality decreases, but this does not mean that the extraction is less accurate. It is possible to have a bit-by-bit perfect copy of a track, while Track quality is lower than 100%. As long as Exact Audio Copy does not report any errors in the Status and Error Messages log, the extracted files are bit-by-bit perfect copies of the original. Track quality should be interpreted as the physical quality of the CD and not of the extracted data. A CD with some scratches or dirty fingers on will certainly cause rereads in EAC and thus a Track quality lower than 100%, but still the extracted tracks may be perfect. Thus if the log says Copy OK for a track that means it's extracted perfect - no matter of the Track quality.

This was copied from http://users.pandora.be/satcp/eac07.htm#-

Cheers.
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