Rewritable media have not a long duration in time. After a certain number of write/erase cycles, the disc becomes a coaster.
Often (not always), doing a FULL erase with ImgBurn (1 or 2 times if needed) can recover a disc making it usable again for a while.
Try to do a full erase to see if the disc can be recovered, and burn it again.
Another possibility is that the burner (not exactly a recent drive) is at the end of its life, so you need a new drive
Another possibility is that you are using a copy of a game, that recognize the disc as not the original media and asks for the original disc to be inserted. There are some ways to correct this, but I have no idea how. Try to do a search in the forum for similar issues in the game sub-forum