High Quality Content by WIKIPEDIA articles! BackupBluRay is a free, open source utility which aids in the decryption of AACS copy-protected content on Blu-ray discs, presumably for the purpose of backing up a video that a consumer has purchased. The software was written by an anonymous programmer using the pseudonym Muslix64 — the same programmer who also created a similar backup utility for HD DVD disks called BackupHDDVD.