HG Edge Card

My DS is an NDS lite, and so I wanted to take a crack at the new Pokemon HeartGold version.
I updated my EDGE OS to v1.10, and afterwards added the HG to the GAMES Folder.
However, upon turning on the DS and selecting the games, nothing comes out. And when I pop it back into my PC to check what's happened, the GAMES Folder is now completely.
And yet when I check the properties of the card, it still says I have 1.80 GB used with .20 GB free, just as if all my games were still there. Already tried Show Hidden Files, anyone got ideas? Don't want to lose all of my other games...

Sounds like it may have been corrupted. Hopefully you have a backup of your files, if not, you will keep backups from now on.

If you can, copy all files to your computer, than fully format it using Panasonic SD Formatter. With ERASE ON.