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.
Most DVD Players support playing DL DVD-R, DVDÂ±R/RW, DVD, CD-R/RW, MP3, JPEG, however different plays have their special features. You need to introduce us what DVD player you have and then we can show you the detailed video formats.
A DVD is physically different than a CD, so it will not play in a CD player. While a DVD-audio format exists, very few players will play it, especially in cars. So forget DVDs. A better solution is to convert the audio into MP3 format and burn the MP3 files on to a CD-R formatted as a DATA CD.