Installs without an installation disc needed.  Works terrific with both my Netbook and my ThinkPad tablet!  You need 2 USB ports for the hook-up but the tablet has many and I use a Belkin hub for the Netbook.  You need to be a little gentle with it when you "return" the disc.  Because the "open" button is black like the rest of the unit, I painted it with WhiteOut to see it better. Hahaha