Pressing most of the buttons elicits nothing but a "Please upgrade" notice. You can't even use the time-line slider to rewind within a track! The clunky and poorly designed interface doesn't help any. Adding (minor) insult to injury, Avant DVD/DivX Player installs an extra shortcut on your desktop without first getting your permission.
Since it's free, inveterate penny-pinchers may want to have a look. But given its limited feature set and so-so design, not to mention a market saturated with better products, we can't recommend Avant DVD/DivX Player.