I came across this and was wonder if anyone has any experience with it.
ShedWorx | Home of VoltaicHD and RevolverHD | AVCHD, high definition, video conversion, software (http://www.shedworx.com)
It says that it is a utility that can encode a video project into AVCHD and goes on to say that in the near future it will also be able to burn iMovie/Final Cut projects to a DVD that will play on any Blu-ray player.

Tom