Hello---i was just wondering if files done in 2.5 are compatible with version 4.0

Well, I know for a fact that the files I created in 2.0 are working fine in 4.0, so I'd say yes - as long as you keep all the patches and refills, etc. you've used.

Thanks for your input. I only want to save sounds I used from the factory & orkester sounds that came with it----I did not use any refills, etc.

What I did in the meantime is burn a disc of the song I created (rns file?) which I'm going to take to GuitarCenter and load it in to thier Reason 4 setup to see if everything runs correctly.