It has issues renaming SOME cdi images I have found. When you go to look on the SD card you will find it only renamed the folders like 02_, 03_, ect. You just have to go in and rename them properly to 02, 03 ect and it should recognize it again. Just make sure you delete the .cdi game and folder that conflicted with it or it will do the same again. I had to figure this out on my own last night when preparing 90+ games. Took me renaming the folders like 4 times before I figured out the issue.