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External Drive for Mac

In 2008 I bough an LG GP08 as an external DVD drive, it works okay. In 2018 I got a new one, An Asus SDRW-08U9M-U.

The Asus gives me accurate rips with XLD but has usually a lot of alternative offsets, like here for a pressed copy of "Automatic for the People"

Code: [Select]
List of alternate offset correction values
        #  | Absolute | Relative | Confidence
    ------------------------------------------
        1  |     42   |     36   |     400    
        2  |   -775   |   -781   |     384    
        3  |    -32   |    -38   |     78    
        4  |   -913   |   -919   |     49    
        5  |   -303   |   -309   |      9    
        6  |     48   |     42   |      2    
        7  |   -959   |   -965   |      2    
        8  |   -942   |   -948   |      2    
        9  |    508   |    502   |      2  

Alternative offsets for "Collapse Into Now"

Code: [Select]
List of alternate offset correction values
        #  | Absolute | Relative | Confidence
    ------------------------------------------
        1  |     60   |     54   |     364    
        2  |     54   |     48   |     281    
        3  |     18   |     12   |     54    
        4  |     48   |     42   |     25    
        5  |     66   |     60   |      3    
        6  |     -6   |    -12   |      2  

My question is, if the rips are accurate does it matter which offsets are recommended or should I change my settings? I currently use the setting 6 which suggested for the Asus U8M, for the U9M there is no setting in the database.

Re: External Drive for Mac

Reply #1
You should use the read offset correction value for your drive, not adjust the correction value to match alternate pressings.
korth

Re: External Drive for Mac

Reply #2
Personally, I'd be more interested in seeing the "AccurateRip Summary" part of the logs. If those seem OK, I wouldn't worry about it. As far as the alternate offset values are concerned, these are often different pressings of the same album; when a new batch of pressings is requested, an offset is often introduced with respect to previous pressings of the album.
Lossless: flac --best --verify
Lossy: opusenc --bitrate 160

Re: External Drive for Mac

Reply #3
Thanks for the answers. The CDs are accurately ripped. It was only if I should believe those alternative offsets, which I'd never noticed when I used the older LG drive.

 
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