thanks for your replys guys. yes i am getting confused ! i've had a good look round tonight so this info may help - this is an acer laptop and the hard drive seems to be split 50% / 50% between the C drive and D drive (which is described as ACERDATA) Both drives seem to have 17.5GB of memory available. Looking at the C drive shows that i only have 1.15MB of space left, so i suppose this means that i've used that up with all my programs and about 100 music albums. D drive, however says that of the 17.5GB available i've still got all the 17.5GB unused. Does that mean that i can move my albums over to the D drive and free up space on the C drive ? I'm also a bit concened that there seems to be nothing at all on the D drive as i thought that was where the system recovery discs were kept. I hope this makes sense. sorry to be a pain but your help really is appreciated