Well, my Canon G1 fell onto the road (with a few bounce) together with the 1GB microdirve in it while I was cycling 2 yrs ago. The microdrive is still in excellent condition till last month when I sold it away to make way for 2X512MB compact flash (so that I can use the media both in my camera and PDA), while my G1 broke down one year ago. No problem with any sensitivity issues whatsoever in my 2 yrs of usage of the MD.