Great script. In order to allow you to keep track of which songs you've aacgained, here's a change you can make to the script to update the seldom used 'grouping' field. Instead of

set oldcomm to t's comment
set t's comment to " "
set t's comment to oldcomm

use

set t's grouping to " "
set t's grouping to "AACGained" 

(For whatever reason, I had to set the grouping field to " " first before it would accept any further changes.) For the De-AACGain script, you would just change the 3 original lines to

set t's grouping to ""

Now just show the 'Grouping' column in iTunes to see which songs need to be aacgained.

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Thank you :)

I used your suggestion, the manipulation with comment was the way to force iTunes to notice there is a change in tags. Using grouping has more sense. I just put new version at the same URL as before. This version includes your suggestion and deals with files on another partitions etc.

Regards,

Pawel /Polonus

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