These do not affect functionality.
Denon DBP-1611UD Universal Audio Video 3D Blu-Ray DVD CD SACD Disc Player w HDMI
Denon DBP-2012UD Universal Audio / Video Player DVD CD Blu-Ray SACD Player
Denon DBP-1611UD Audio Video Full HD DVD 3D Blu-Ray Network Player HDMI Dolby HD
Denon DVD-1940 SACD MultiRegion DVD Audio Video Super Audio CD Universal Player
