
Wikipedia says, "a
compact disc (or CD) is an optical disc used to
store digital data, originally developed for storing
digital audio. It is the standard playback format
for commercial audio recordings today." Intellistudent
says, "Someone needs to find a better
hobby than entering stuff everyone already knows
into Wikipedia."
If you'd like to get
10 of these optical discs used to store digital
data -- in this case, full of music by bands you
like -- for about a penny, then this is your section.
You can also do the same for DVDs. Did you know
that "the official DVD specification is maintained
by the DVD Forum"? Wikipedia knew.