How do I put AVC/H.264 files from an HD camera and encode an AVCHD DVD to play in my Blu-Ray player?

Seems like it should be real simple, but it's not. The Samsung camera I have records to MP4 files encoded as AVC/H.264. I should be able to encode to AVCHD and burn to a DVD and play that in my BD player. The software that comes with the camera is garbage. How do I do this? What software should I use? Seems all I can find are cryptic 10-step processes.