Dear Kartu,
Thanks for your and jackie_w suggestions

, I was able to install the software very easily on my 950.
However, it has frozen twice, each time after playing a game (five in a row, the next night mahjong). After five in a row it got stuck with a screen "undefined" or undefined folder - it would not respond.
Last night it got stuck, i tried to switch off, then it would not switch off and got stuck more.
Each time i pressed the reset button i think 3 or 4 times then it came back to life. Was this the right thing to do? Any other less dramatic steps. Anyone else had this problem or is it normal?
On your software itself, thank you - I cannot believe that the original sony software did not have folders, your software is so much more obvious and intutive. It basically just reads off the SD card. Clock also is basic but why not in the original sony, great to have it. Downloading files - I want to try to get dropbox or something like this to work (firewall stops it working) - then I could send files from work to my 950 to read. Still figuring out how best to do this.
Hope my problems are not serious, and thanks for writing this simple and effective software.