NEED HELP. Dumping blu-ray w/ SAK and I get blu-ray.aa abd bluray.ab

I downloaded Swiss army knife and when i dump a blu ray to my external har drive at /dev/sdc1 I only get blu-ray.aa and blu-ray.ab This question has probably been asked a millions time but I can't find a answer for me. I need to convert it to a ISO and all I have is a 40GB external hard drive Windows XP Pro, a PS3 (i have linux but I h8 it) and some basic knowledge. The AA file is 3.41 GB and AB is 1.08 GB. Can any1 please help, I would really really appreciate it.

BUMP can any1 please help? I really really need it.