If you do put your purchased music through, there is a way to get to fix it (see #Troubleshooting)Mp3s: If you are using mp3 files, be careful with using Picard to save ID3v2.4 tags.
Some versions of i Tunes (older ones in particular - may affect current ones) can save incorrect ID3v2.4 tags and aren't able to read the correct ones correctly. Use i Tunes built in library organization to change the file names and locations.
There are 3 main ways of adding music to an i Tunes library; purchased downloads from the i Tunes Music Store, ripping CDs directly into i Tunes, and importing files that are already on your hard drive into your library.
The default settings in i Tunes are to encode AAC files, which are supported by Serato software, however we recommend MP3 encoding.
To change the encoding settings, i Tunes Setting: Custom.
These settings would be best for Serato users: Stereo Bit Rate: 320 kbps Besides the encoder and it's settings, the other option which simplifies importing CDs is the second check box: "Automatically retrieve CD track names from internet".
You can either drag them in your library from the operating system, or use the import files dialogue in i Tunes itself, which is in the file menu When using Serato DJ, third-party programs such as i Tunes are not the best and most reliable way to organize your Library.
After you combine the tracks, you can transfer the single audiobook file to your i Pod or MP3 player and listen to it on the go.
Click the “Options” tab at the top of the “Multiple Item Information” dialog box and select the “Audiobook” option from the “Media Kind” drop-down menu.
i Tunes is a popular free application from Apple which, among other things, can import, organize and play back a library of music.
All Macs come with i Tunes preinstalled and a Windows version is also available free of charge.