https://marco.org/2008/10/12/sandboxwarrior-in-response-to-my-avchd-woes
sandboxwarrior in response to my AVCHD woes:
Use Final Cut Pro.
When you buy the final cut suite it comes with Compressor and DVD Studio Pro. Once you have both of the programs you can shrink your HD files to the best size and compress the files to good DVD formats without having to be awful.
I would, except that Final Cut Studio costs $1300, and that seems like a bit of overkill to get a reasonable workflow from this $650 camera that I only use about once a month. I know I could pirate it, but I really try to minimize that now that I’m an adult capable of paying for things.
It seems especially ridiculous since my minimal, occasional editing needs are usually satisfied perfectly well by iMovie (freely bundled with my computer) and QuickTime Pro ($30).