Also other companies like Microsoft who are using the same technology from Roxio could likewise face lawsuits. Back in 1995 data was burned to an optical disk using the limited ISO 9660 method, meaning you burned your data and the disk was closed no matter the amount of the data written and for the most part one could not read it on another computer without the original mastering software.
Optima's solution in 1995 as listed in their patent is quite simple; in 1995 no one was using this to write a optical disk. It revolves around Optima's patented ability to produce an optical disk that can be incrementally written multiple times using packet writing that allows for a faster write and then allows that disk to be read on any computer just like a floppy disk. Optima took the limitations of ISO 9660 and developed its own patented method that later OSTA used and came up with UDF 1.5 and as well the European Computer Manufacturers Association used an came up with a standard they called ECMA 168. Since then many companies have used this or a similar technology, the law will judge if this is Optima's patented technology and if Optima can enforce the patent.
Optima also forwarded us a letter received from OSTA's attorneys after confronting OSTA early this year about the patent infringement matter. OSTA stated that they are a non profit organization and that Optima could not sue them for setting such standard as UDF 1.5. They quoted their contract with the OSTA members and it states that it is up to each member who uses such standards to do their own due diligence as the standard being used could infringe on someone intellectual property or patent.
Roxio is, according to Optima, responsible for inducing infringement and contributory infringement of Optima's patent rights and the company is claiming billions of dollars in damages.
Source: CD Freaks.com
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