Sony has successfully held off companies in the past who have insisted that the PS3 manufacturer had infringed on patents relating to its Blu-Ray discs, and still they keep coming for a slice of the cake.

This time, Californian-based firm Orinda Intellectual Properties has applied to the courts claiming that Sony has violated patent number 5,438,560, which relates to  “an optical disk-shaped recording medium comprising a plurality of tracks,” filed in 1995 by Hyundai Electronics Industries.

Read more here: Blu-ray lawsuit requests that Sony pull PS3 supply