Gaming Missing games on r4i Ultra card

[prpro1204]

After deleting a few nds files from my r4i Ultra memory card that did not work on DSI as well as needing to free up space (getting message "not enough space") on the 8gb micro sd card, everytime I insert it in the dsi, I click on the R4DS Ultra icon and freezes on loading screen.
So, I put it in usb drive and the only thing listed on micro sd now is a few .sav files I had just accessed--everything else is gone. Then I clicked on properties and shows 7.40gb space used and 7.87mb free space. I then deleted the .sav files that show up to see if that would help....now shows "folder is empty" but properties still shows 7.40gb space used and 7.87mb free space. It won't allow me to even reload the system/menu root files or anything else. In over the year I've had this, this never had happen before.

Obviously the .nds files are still on micro sd since it's only showing 7.87mb free space left. All I did was delete a few new games the were not compatible and then reinserted to dsi.
Does anyone know how to fix this?

Please help if you can...thanks

 

[mameks]

Sounds like you need to format your card.

 

[prpro1204]

But if I reformat it will it erase everything (currently it is formatted as FAT32.) Any reaseon as to why this happened...I've deleted games many times before and never had to reformat

 

[Deleted User]

your memory mostly got broken over time, maybe you will have to buy a new memory card(happend to me once)

 

[mameks]

But if I reformat it will it erase everything (currently it is formatted as FAT32.) Any reaseon as to why this happened...I've deleted games many times before and never had to reformat

Copy all the save files off and format it. I'm afraid you're going to have to re-download all your roms