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.
So you cannot play a Blu-ray Disc on a DVD player. The only way to play Blu-ray disc on DVD Player is to convert Blu-ray disc to DVD Player supported video format using a Blu-ray Ripper. Then you can play the videos on DVD Player via USB port. All DVD players play MPEG-1 and MPEG-2 video and AC-3 or PCM (eg, WAV) audio.