This Windows Premium version of the software player was right up there, as far as usability, and covering all bases in playing the maximum of doses, and gaining benefit from them. I had purchased some doses, which really didn't seem to play too well, with the earlier player I had. But right after purchase, I was shocked at how much more was playing, in both quality and number of doses. I would recommend, don't be cheap, as I was. Go for the full package, at once, and don't waste time!