How does the interface handle the switch from regular to menu mode, e.g. :
- in regular mode it uses the 5 buttons for transport control
- in menu mode it uses them for navigation?

What are the steps for e.g. DVD when you make some change in the audio settings of a DVD, or in the setup of the DVD Player?

Same question for TiVo owners: how do you go to the Now Playing list, pick a program and go back to "transport" mode?

Thx...