I always try to submit my Mix CDs to the Gracenote CDDB, so when someone puts their copy into their favorite CD ripping/listening software, with luck, the tracks will come up, saving them the trouble of having to type in all the track titles and artists and whatnot. This tends to be one of those things where people seem pretty impressed by this, but it's really easy to do! I tend to make all of my mixes in iTunes, so this is a step-by-step guide for iTunes (works both for the PC and Mac versions):