Developed side-by-side with MusicMatch Jukebox, another music player acquired by Yahoo!

wanted a product that would compete with Apple's iTunes and consequently acquired Mediacode —a digital music startup founded by former Nullsoft developers Ian Rogers and Robert Lord— in 2004 to build its in-house music subscription service[5] and create a media player/digital jukebox as the main client for that service.

[6] Its features include CD ripping and burning, access to LAUNCHcast radio and the Yahoo!

Messenger users to stream music to one another (not to be confused with uploading and downloading or filesharing) and browse one another's playlists.

The Engine also has a number of plugins available for free download from the program's official website below.

strongly encourages users of MusicMatch Jukebox to upgrade to the latest version of Yahoo!

Due to its dependence on ActiveX, a proprietary technology developed by Microsoft, it is likely not to be ported to other operating systems.

[7] Left with no way to access their DRM-protected songs due to the shutdown of DRM validation servers, Yahoo!

customers were offered a chance to download a DRM-free version of their existing files from Rhapsody.