I've got a folder with four files: .img, .sub, .ccd, and .cue. I've only worked with Bin/Cue and ISO before. I'm guessing this image was made with CloneCD, but does CloneCD usually include a .cue?
i'm guessing u didn't make this image urself.
CloneCD has the option to make a cue file.You can best burn the image with the application used to create them using the original disc(s)