Directions for M003 to play videos smooth and video ok. Go to Preview screen size 480x320 and set the quality at 50%-56.3%. I tried Quality from 30,40,50,60,and 70%. I would recommend 56.3% for quality. 60% was about the limit. 70-80-90-100% the video will not play but audio will. Hope this info is helpful to new M003 buyers. Recommended settings probably work for M001/M002.