Open RMJ File
An RMJ extension file takes on a proprietary audio format used by Real Media Jukebox, also known as RealJukebox.
About RealJukebox
RealJukebox was a jukebox-type music player created by RealNetworks.
It has since been superseded by RealPlayer and is no longer available.
RMJ files can be played in RealPlayer or other compatible programs.
The RMJ is saved in a slightly different format than the .RA and .RAM files, which are used by RealPlayer.
RMJ files can be converted to other audio formats.
Currently, RMJ files are rarely used and the format is considered obsolete.