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.
Recordable formats, supported by the DVD+RW Alliance[edit] 1  DVD+R: can record up to 4.7 GB single-layered/single-sided DVD+R disc, at up to 16Ã speed. 2  DVD+RW: can record up to 4.7 GB at up to 16Ã speed.  DVD+R DL: a derivate of DVD+R that uses dual-layer recordable discs to store up to 8.5 GB of data.