Actually, there are two versions of Metsequoia, the LE version that lets you save in other formats, and the shareware version that does more, but you can't save in any other format than Metasequoias without registering. The only problem with registering is you have to be in Japan to register it. No one else can yet. Hopefully this will change, as I would love to use the full version. There probably is a razor's edge here on legality. Other companies, and people, have made conversion tools for formats that weren't their own. I do not know if royalties had to be paid though.