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.
In fact, whether the DVD players play AVI videos or not, it depends on the DVD player model, the AVI video codec or the AVI video resolution/size: 1  Most DVD players only accept MPEG-2 in standard VOBs. 2  Though some newer DVD players can play AVI files, it only plays AVI which is encoded with DivX. However, AVI is a container video format which may encoded with different video codecs like DivX, Xvid, MPEG-4, H.263, WMV, MPEG-1 and etc.
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.