Jim, I have the Vosonic Xs Drive II, with 40 Gb HD. It has the advantage it take various types of card, CF, SM, MS, MS Pro, SD, MMC and IBM Microdrive. It has mains charger, as well as from a car, and had doubled as a USB exernal HD for the computer if needed. Have no logical reason why I seleced 40 Gb, as compared to the other options of 20, 60 and others. Jim Thyer, Point Lonsdale, Vic, Australia.
