Not only does it convert files formatted as RM, but it also converts RA, RAM, RMVB and RMJ.
RM Audio Converter Joiner will let you choose the quality of output file, no matter the input or output format you will be able to customize it at all.
In addition, it is really to use, you only have to add the audio sequences to the convert list and choose the output format, press start and let the rest to RM Audio Converter Joiner.
Be careful! If you add more than one file, they will be joined in the output file.
30 day trial version