Harmy said:

Most people still don't have BD burners (got beaten to it), so the AVCHD may be their only way to watch this in HD on their BD players na the encode quality is still very very high. And I think that if there's another SD DVD, it will be a DVD9, because this is very grainy and that doesn't agree well with mpeg2 compression.

I very much hope you will decide to do a 2.1 AVCHD. I believe that will definitely help many like me who do not have a blu-ray burner, but want to watch it in HD. I am likely to download the blu-ray also, since my media player connected to my tv will play back ISO and blu-ray folders, but I think AVCHD is important for many people.