How to mount AARUF CD image?

I have a CD image file which has AARUF as its filename extension and I want to access its files. Using file, I don't get any further information about the format: $ file image.aaruf image.aaruf: data $ Trying to mount the image with fuseiso results in errors: > init: wrong standard identifier in volume descriptor 0, skipping.. > init: wrong standard identifier in volume descriptor 1, skipping.. > init: wrong standard identifier in volume descriptor 2, skipping.. > init: wrong standard identifier in volume descriptor 3, skipping.. > init: wrong standard identifier in volume descriptor 4, skipping.. > init: wrong standard identifier in volume descriptor 5, skipping.. > init: wrong standard identifier in volume descriptor 6, skipping.. > init: wrong standard identifier in volume descriptor 7, skipping..