I tried the "SD Card Recovery - Card Recovery Tutorial" link, but this tool appears to only be for media such as images/videos/audio. It attempted to build a jpg image containing most of the data it found, when it really was a variety of file types.
The website for the "SD Card Data Recovery...
I have a Micro SD Card that acts as a USB stick.
It seems to have become corrupted. If I place it in my computer and try to read from it, Windows says, "You need to format the disk in drive F: before you can use it." Shortly before this started happening, one of the folders had messed up...