I want to convert a RM video file into mpeg, but how..?

I try to open this video file with super DVD creator 5.0., but a message appear saying, not supported media format. The file type is a RM video file... I need to convert this file into .mpeg format, because i want burn it together with other clips... but my DVD burner program can’t recognize this file., Can anybody help me plz.................!

I use Boilsoft RM to AVI converter - it also converts to Mpeg. I have used it and burn DVDs