Neither File formats nor algorythms are subject to license. The only exeption is a patented algorythm, which is possible in the US, but (at least at th moment) not in the European Union or otherwhere. If anyone things that file formats or protocols aren't allowed to be re-engineered should talt to SUN (Star-Office) and SAMBA.ORG which have done thet to the MS-Office file formats and the CIFS-File transfer standard. And MS has lawyers to spend. :)

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

Avatar image of me done by Chidori.