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.
When you want to watch a DVD, open VLC andâwith the DVD in your driveâclick Menu, then Open Disc. VLCâs a handy program to have on any new system, anyway, as itâs capable of opening virtually any audio or visual file format, including quite a few that Windows Media Player canât handle.f youâre just looking for DVD playback and could care less about Windows 8 Pro's other special offerings, weâd recommend just going with the VLC option above. Be warned: While Windows Media Center handles DVDs like a pro, it can't play Blu-ray discs whatsoever.