So I have the PS3 hooked up to my 1080p hdtv via HDMI and the ps3 games looks absolutely fantastic and so do the blu-ray movies. Now my question is I played my regular dvds through my dvd player via composite cables (480i, I need to get component ). Anyway, I was gonna buy component to bring it up to 480p but then I remembered the ps3 upscales regular dvds.

So I took out the dvd (OZ season: 4 disc 1) and put it in the ps3. Put the settings to upscale, hdmi, full screen, etc.....Checked output via tv remote and says 1080p but I didn't notice any difference at all in picture. Anyone have any ideas? I remember it saying that if its copyrighted it won't upscale or something but aren't all legit dvd's copyrighted?