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.
#3. ok, well my dvd player is a samsung blu ray player but plays regular dvds too. im pretty sure I made the whole dvd as ntsc because i read that that's what US dvd players play. I transfered all the pictures from SD cards and I created the wmv file because I wanted to make a DVD menu and was limited by the AVS video editor.