I don't like to hear Harmy's projects being referred to as "fan edits" - that term, rightly or wrongly, carries negative connotations to some people.
A fan edit is a new, alternative version of a film, whereas "fan restoration" would be more accurate to describe Harmy's project; he is attempting to rebuild a specific pre-existing version.
As for your other questions, your DVD player will not play AVCHD discs, if you want to watch these in high definition you will need to hook your PC up to your TV, or buy a BD player.