peer-to-peer
Definition:
Peer-to-peer, sometimes referred to as p2p, is a term used to indicate direct communication between two computers. This is in contrast to the majority of communication between computers on a network such as the Internet which communicate through central servers.
Here's a word you may not know...
CD
CD stands for Compact Disc and is a popular medium for music. Music on a CD is stored digitally. Playing a CD requires a CD player or other device, such as a computer, with a CD drive.
Certain types of writeable CDs can be used by computers to store data.