


Set 'Import Using' to 'MP3 Encoder' and use the next drop-down menu to choose your settings - you can choose 'Custom' and set the bitrate as suits you. (Never tamper with the actual library in the Finder).įirstly, go to iTunes Preferences>General and click the 'Import Settings' button. This will make duplicate AAC versions and you can delete the original versions in iTunes. Now go to the library, select your original files and from the from the 'File' menu choose 'Create new version' then 'Create AAC version' (iTunes 11 - in earlier versions choose 'Create AAC version' from the 'Advanced' menu). In iTunes Preferences>General click the 'Import Settings' button and choose 'AAC encoder' (it may be the default) and use the next drop-down menu to choose your settings - you can choose 'Custom' and set the bitrate as suits you.Ĭlick OK, then OK again to close the Preferences.

Start by dragging the files concerned into the Songs list in iTunes if they aren't already there.
