Once you are playing a pattern, the left and right arrows will go to the previous and next patterns. The up and down arrows will turn help on and off. The goal was to use the disc without repositioning your hand.

We use hidden buttons to make this work, which blocks us from using the chapter next, previous and pop-up menu buttons.

There is also a hidden title, 127, which includes static SD patterns.

Stacey Spears
Co-Creator, Spears & Munsil High Definition Benchmark, Blu-ray Edition and Lighthouses of the Pacific Northwest.