A bale processor (10) of a type that efficiently processes both round and square bales. A bale processor chamber (12) has at least one moveable wall (12b) adjustable between a mostly vertical position suitable to process round bales and at least one less vertical position suitable to process square bales. A floor conveyor (16) is provided at the bottom of the bale processor chamber (12) and is oriented at an angle of eight to sixteen degrees from horizontal to move a bale and bale parts toward a rotor (14) which tears the bale into smaller pieces and throws the smaller pieces out of the bale processor (10).