US lawyers have screwed up the licensing specifications designed to protect movies from being copied, reports EETimes. A California court ruled yesterday that a Silicon Valley company isn't violating the technology used to protect DVDs because the licence and specifications for the technology are so badly written.

The decision marks a rare, though small victory for a Silicon Valley startup facing the interests of a group of large movie studios and consumer and computer companies. The ruling also could open the door for other systems makers who want to design personal video libraries that store DVD movies on hard drives.

Judge Leslie C. Nichols ruled against the DVD Copy Control Association (DVD CCA) in a civil suit that asked the court to force startup Kaleidescape to change its design or stop selling its server that stores hundreds of DVD movies on a hard drive array. Nichols said the basis for his decision was his ruling that an entire section of the DVD CCA's spec for the Content Scramble System (CSS) was not technically included as part of the license agreement.