Hi Rin

Happy to help out. :-)

Our converters work with MOST files of those types. I"ve recorded files with other programs, WM Recorder, freeware, even burned movies from DVD's and they've worked fine for me. :-)

If you haven't yet - give the RMC4 converter a try with a file NOT obtained via RMC4 and let us know how it goes. You'll be glad you asked for clarification. :-)