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.
GOM Media Player. GOM is another very popular media player that can play DVDs on Windows 8. It also supports a plethora of file formats and is easy to use. In order to achieve DVD playback, however, you may need to follow its FAQ on installing the MPEG-2 codec.f you like watching DVDs on your PC, you'll be disappointed to know that Windows 8 can't play DVD videos out of the box, so to speak. That doesn't mean you have to go out and spend a lot of money to get DVD video playback. In fact, there are quite a few programs available that are free.