Something is puzzling me, and I'm wondering if there is an explanation. I currently have a CRT Widescreen Sony television, connected to my upscaling DVD player only with component cables (not HDMI cables). I realize that not having an HDMI connection, the upscaling will have little effect on the picture displayed in terms of quality. However, just to see what would happen, I have run through the different resolutions (480i, 480p, 760p, 1080i, and 1080p) on a few DVD's. What I have noticed with DVD's from Shout Factory and Critic's Choice, as well a burned DVD's and some extras on a Warner Brothers DVD, is that the picture remains at 1.37:1 at 480i and 480p, but when switching to above that, the picture expands to ~1.57:1. (This does not happen on the majority of 4:3 commerical DVD's.) When I say expands, it adds information on both sides. It does not STRETCH the picture. Any idea what is going on here? Is there additional information on some DVD's that normally isn't displayed on a standard 4:3 screen, even though it exists? The other part that is confusing is that, based on credit pages and, in fact, decorative frames around such pages, it doesn't appear any info is missing vertically. Has anyone else had this experience? I'm especially curious about those that actually have HDMI cables, and are getting the maximum utility out of upscaling. It's not really a problem, as the picture isn't distorted. Just sort of a curiosity.