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.
HD-DVD (high-density DVD) is a high capacity optical storagemedium. A single-layer HD-DVD provides up to 15 gigabytes (GB) of storage capacity and the double-layer disc offers up to 30 GB. A standard single-sided, single-layer DVD offers 4.7 GB storage capacity. Download this free guide.