Slysoft is reporting it has cracked the copy prevention technology attached to Blu-ray discs, as the cat and mouse game between fair use hackers and studios supporting the format begins in earnest.

The company claims its Windows-only AnyDVD software will allow users to make back-up copies of high definition films in the Blu-ray format, which employs a technology called BD+ to prevent such duplication.

The developers of BD+ originally claimed the protection would endure for a decade before it was cracked, but it seems Slysoft managed to do it within months, hanging fire on the release of the technology until cessation of the high definition format war between Blu-ray and HD DVD.