A test of a new intervention or treatment on people for. detecting. -Tolerability. -Safety. -Efficacy. A Clinical trial is defined as a prospective study. comparing the effect and value of intervention. (s) against a control in human beings.
Most DVD Players support playing DL DVD-R, DVDÂ±R/RW, DVD, CD-R/RW, MP3, JPEG, however different plays have their special features. You need to introduce us what DVD player you have and then we can show you the detailed video formats.
A DVD stores its audio and video in MPEG-2 format. A DVD player or a computer equipped with a DVD drive is required to play DVDs. A DVD holds significantly more data than a CD (including a VCD). A two hour movie that requires 2 VCDs can be recorded only on one DVD.