Rhapsody is an online music service run by RealNetworks. Launched in December 2001, Rhapsody was the first music service to offer streaming on-demand access to nearly its entire library of digital music. Downloaded files come with restrictions on their use, enforced by Helix, RealNetworks' version of digital rights management.

Rhapsody delivers music files in RAX format (RealMedia audio).

TuneCab Media Converter can convert Rhapsody files to mp3 and other unprotected formats if you have valid licenses for playback of those files on your PC.