I purchsed this DVD for a a diagnostic tune-up of my TV/DVD. On the visual side the geometry tests out 4x3, widescreen and anamorphic widescreen. It expects you to switch your TV to the various aspects as you check the geometry settings against a test pattern of 4 circles around the edges with one in the middle. The 4x3 test was spot on and I tweaked a little the widescreen/letterbox settings in the service menu. The problem or question is how do you set the TV into anamorphic widescreen to test the geometry ? In widescreen mode on my TV the anamorphic pattern i.e the 4 cirlcles in the corners of the screen are not completely visible. The TV , a panny 36PF10, switches between 4x3, FULL, JUST and panasonic auto as well as the zoom screens. I suppose I may have to assume it's correct as adjusting further will disrupt the correct geometry under the nomal letterbox and 4x3 viewing. It's a pity it cannot be checked ?