i highly doubt that there's any difference in video support between the 3 different models. the only differences are likely the incremental additions as advertised (ie built-in wifi, touchless open/close for 210, and dual hdmi for 310). i'm fairly certain they all perform identically via usb. as i posted yesterday, i tested different media files (via usb) with my 110p (na/usa), and it played jpg, mp3, and mkv (hit and miss with these, though i only tested <100m size files). and a 210 owner posted that mkvs work fine from the usb. so there's probably no need to hold off on getting a 210 if you don't need the dual hdmi of the 310.