good idea, but most people take hundreds of pics with a digital, and it would take you hours to rename them all
also, another tip for ya, i would save them in at least 3 diferent spots. On the HD, on a CD, and depending on your other storage options, a usb flash drive, or on another cd. CD's do not last forever, and even if they dont get scratched, or otherwise damaged they decay over time, should last at least 5-10 years, depending on how you store them. sunlight will greatly reduce thier lifespan. but if you have them in 3 spots, if something happens to one of them, you still have 2 copies, so you can always recopy them, so you never loose them.