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.
Most stand-alone DVD players can play VCDs. VCD is the most universally compatible format for wide video distribution. All DVD players, VCD players or a computer with CD-ROM drive can play VCDs. The video quality is better than most other formats and is adequate for typical home viewing.