So I stuck my Sandisk SD Card for the Wii into my laptop and got some music onto it so I could play it through my DSi. After this success, I decided to plug it in again and get some other music, however...my laptop isn't reading it. I'm inserting it correctly, but it isn't coming up under Devices or Hardware or anything. I am using Windows 7. Any suggestions?
Check the driver/hardware. Right click (My) Computer, Device Manager and see if there are any issues.
There doesn't seem to be any problems from what I can see, is there anything in particular I should look for?