BYS - yup, I have the 500. Great drive isn't it :o) what with doing all formats. I just checked the available space thingy in the S/W - both Easy CD Creator Platinum and Veritas RecordNow - and it says 4488 MB. And I've been within 20 MB of that as far as I know. Can't say why this is - could have to do with sector sizes or something?... I've used about 4 different makes but I must admit I haven't tried reading them all in the same drive. I should do that of course! :] Fish