I have an iPod, and I’m still working on ripping all of my CDs to it.
I often edit the Artist name (to last name first format when applicable) and Compilation status for a CD. And I’ve been doing it track by track. Today I discovered it’s possible to simultaneously edit info for multiple tracks: select multiple tunes in an iTunes library (SHIFT + CLICK; i.e., press the shift key and left mouse button at the same time), then RIGHT CLICK (press the right mouse button), then click on “Get Info” in the popup menu. When the “are you sure you want to edit multiple items?” message displays, click “Yes.” A “Multiple Item Information” window comes up and you can then edit the Artist, Album, Genre, Compilation, and more.
Pretty cool!