Well I found a spare 2 GB microSD in my room and my current microSD for my flashcart is only 1 GB so I figured I may as well transfer everything to the 2 GB one. But there's some demented problem, when I put it in my card reader thing and I try to open it, it comes up with "You need to format the disk in drive F: before you can use it." So I click on format disk and it comes up with the all these options and once I've selected the ones I want I click on start. But after a few seconds it says "Windows was unable to complete the format"
Sounds like your SD Card has physical damage to it, look at the connectors and make sure nothing is obstructing them from making a connection, if that isn't it there probably isn't much more you could do for it =/
This happened to me also. But only with 1 SD, not 2. Try doing a "Quick Format" before you do the real format. Be sure to do a real format afterwards.
Try to format it on a Mac. I had a simalar problem once and tried it on my mac instead of my PC and it worked.
