Uncle Dave I bought mine in PC world it's from PNY technologies for about £30. I did notice however that they had several other brands that cost a lot more money. I checked before I bought it at the service desk if it was compatible with Windows Vista and the answer was yes. It also works on Windows XP and it has a small set of instructions advising you how to download the drivers needed for it's use on Windows 98. It also has a two-year Guarantee, sorry, I'm sure all that information is rubbing salt in the wound. However I fell sure that others would turn up even cheaper places to buy these devises. Which always annoys when you have spent your hard earned money already.

Still 4 gig should hold a lot of music perhaps a right hand click with your mouse on the device and a look at properties will tell you just what going on. A right hand click and explore should let you see if you have accidentally duplicated your music files. I find that so easy to do with drag and drop I tend to use select copy and then paste into or better still if available right hand click copy to and then select your device.

If a 700 megabytes of CDR hold more than the contents of one CD a one gig should hold one heck of a lot of CD's never mind 4gig.