Is there any way to make SD content feel a little nicer on high resolution screens? When I view my SD DVD rip of Clannad, the backgrounds and such look amazing - it absolutely kills the DTV rips. However, lines look aliased to all new levels, which is not the case if I fullscreen my old SS-Eclipse release; instead, while overall detail is lost, the lines on characters are considerably nicer and cleaner (comparable to an official upscale).
This also happens with a few of my other SD release (that currently have no HD counterparts). I'll post scaled screenshot comparisons in a bit.
Can I perhaps use Mplayer with some filters enabled? For example, I toyed with smartblur a little yesterday, and while it helped a little I didn't know enough of what I was doing to produce satisfactory results.
Also, while I'm here, is there an Mplayer filter than helps with halos?