Ballebar is correct it is a little more complicated than i first thought but it works for me on my laptop.

Yes you do need a SD card reader that is attched to the PCI Bus.

It also appears to work under windows 7 as this is my currect operating system

As for what p!xeldealer about the vol being the serial number this is a bullshit. The vol will change with each format. Try it and you will see.

CID is the only real way to get you sd card id I know because i tryed it myself and it dont work.