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.
Part 1. Common DVD Player Format Most standard DVDs are MPEG-2 format discs. Home DVD players will also commonly play AC-3 or PCM audio discs. MPEG-2 is also called H.222 or H.262. These are compression types that allow for very clean video and audio reproduction and playback. Thanks to its common distribution, youâll find this format is used very widely around the world.