From what I remember the DJ V3 was good old fashioned DVD format only. In fact, if it has a VIDEO_TS folder, it is DVD only.
Some of the Harmy versions out there are in a different format which could be AVCHD but this 40-something has yet to learn what that is. My Asus O Player plays it fine but other than that I am screwed for a better answer.
Likewise any question on upscaling.