The zenstone just shows up like a thumb drive. Copy files and folders like
you would to any drive. Make and deleete folders the same way.
I was not able to go more than one folder deep, but who needs to. You can
shuffle or play in order. I export books from k1000 as mp3 files, play
music, and copy podcast folders to my zenstone. it is 3/4 inch by 1 inch by
1/2 inch in size. I clip it to my shirt colar and don't notice it's weight.
I think it is 3/4 oz.