You may feel these symptoms first in your feet and then possibly in your shins: 1  Numbness, tingling and pain. 2  Unsteady when standing, walking. 3  Muscle weakness (including weak ankles) or cramps.
720HD is 1280 x 720 pixels per frame. The highest resolution that the DVD format can support is 720 x 480 pixels per frame for NTSC (or 720 x 576 pixels per frame for PAL), which is at best only 37.5% of the resolution of 720HD.
Just as we have DVD players today that can âupsampleâ DVDâs 480p resolution to 720p or 1080i, for use with HD televisions, we will soon see players that can upsample both DVD and high definition DVD to 1080p resolutions that will feed into the new 1080p TVs.