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.
From Play DVD lets you play different audio and video formats like mp3, mp2, wmp, avi, mov, wav, midi, and VOB files as well. The main aim of Play DVD is to play DVD disc and it does that as well. You can also choose DVD directory from your hard disk or choose another DVD drive other than primary drive. Play DVD lets you change the main interface skin. Tutorials on how to make your own skin is also provided.