SumVision cheapo USB-stick MP3 player 512 megs. Very clunky user
interface. Virtually unusable. Eats batteries.

I ripped 110 megs of MP3's to a folder called Highway 61 Revisited/ ,
dragged them to the USB drive and they played alright.
So then I ripped a CD to a folder called LondonCalling/ , dragged and
dropped. It copied about 5 megs worth across and then I got a message
that the USB drive was full up.

Querying the SumVision system menu, it says I have used 484 meg (100%).

So, I have copied 120 megs of MP3's to the 512MB SumVision. But it says
the total file size is 484 megs...

My PC works fine dragging and dropping files to other cheapo USB
sticks.

Any ideas?
Bruce