I have tried converting several .rm files to MP4's and had about a 50% success rate. The failure is that about the first 15-20 minutes will convert fine then the rest (40-50 minutes) is just a grey screen. The other files convert perfectly all the way through. I tried converting one suspect file to .avi and got a similar bad result.

I still have tests to do to try and understand what is happening (i.e. repeat the conversions, check whether there is any audio, do not touch the computer while the conversion is running etc.) but in the mean time, is there anything I could be doing wrong?

The .rm files play all the way through in Real Player. I usually use Nero Showtime to play the MP4's.

Steve: