Yes, there are 688 files in the Program Files (x86)/Jazz Piano MC 1 folder. There are also two other subfolders in that folder, one with WAV files and one with png files. I've noticed that LOTS of the files in the Piano MC 1 folder are ZIP files, which seems wrong to me: Not sure how the program can access a file that hasn't been unzipped. Could that be the problem? Thanks.