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There's a program for Windows that converts .rm to mpeg or avi... that's the best i can tell you though.

(It can be found on VersionTracker.com)
 
with ffmpeg,you can convert .rm files to .avi or .mov e.t.c i don't try to convert .ram file to another format.but with .rm files works ok.so try ffmpeg to convert the .ram file,maybe it works!
 
I've used Snapz Pro X to record RAM as they play and save them as MOV files. Works very well.
 
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