for example, when i pop a dvd into my player/recorder, and view it using a regular television with s-video input from dvd player, what am i seeing on my television in terms of line quality and what pixal quality is the actual dvd sending via s-video? now then, what if i use the 3 composit out cables from my dvd player/recorder and plug it into my hd widescreen television? how many pixals does the hd tv display(not the tele's actual specs, but the signal from the dvd)?
in other words, when mastering a dvd, what is the highest picture quality one is able to record/master onto the dvd disk/technology itself? which then leads to the question; what is the highest resolution possible for super8 film?
why hasn't anyone/anycompany created a film neg/pos scanner that allows rolls of 8/16/35mm to be fed through and scanned at super high resolutions(or any resoultion for that matter) one frame at a time? this sure would make life easier ... imagine being able to take your processed film, load it onto a spool arm, enter the film itself into an 8mm scanning carterage that holds x,y postion(registration), and then attaches to a film strip connected to the feed/take-up spool, and with a press of a button it stars a scanning process, one frame at a time. you cna simply walk away from it and in a matter of hours or days, come back to it and voila! high res, single frame images named in sequencial order, ready to be edited on your nle. is it just me, or should this type of scanner already exist? if so, i have not been able to find it or one like it

ok, thanks for your detailed and specific replies to this thread.