Is it possible to convert .mp3 audio to .rm format?
Converting MP3 Audio Files directly to RealMedia Files (.mp3 to .rm conversion) is possible and quite straightforward. It relates to users attempting to encode MP3 audio to RM video.
Try using a media editing software or (online) conversion tool, such as MediaCoder or Freemake Video Converter, which should allow users to import MP3 audio and export it in RM format.
Video converting software