There really is no easy answer, it will vary from source to source. The higher level of advanced opts in the atv 3 preset will typically produce a smaller file at the same visual quality as the atv 2 and especially the atv 1 preset. However on HD like 1080p that will be offset by the preset not scaling down to 720p as it does in the atv 1 preset.
Try a few short tests using the exact same source with each preset ... that will give you an idea. DVD's will have a greater savings than 1080p (due to the scaling mentioned above).
Try a few short tests using the exact same source with each preset ... that will give you an idea. DVD's will have a greater savings than 1080p (due to the scaling mentioned above).
Probably not. the advanced opts in the atv 3 preset I pretty much took right from hi profile. atv3 and hi profile will do pretty much the exact same thing on a dvd, besides the decombing which is decomb fast for atv 3 so its a bit faster to encode.
Probably not. the advanced opts in the atv 3 preset I pretty much took right from hi profile. atv3 and hi profile will do pretty much the exact same thing on a dvd, besides the decombing which is decomb fast for atv 3 so its a bit faster to encode.