Da boca do cavalo, o próprio site do Zune :
Previous item or chapter CTRL+B
Go to search box CTRL+E
Next item or chapter CTRL+F
Turn shuffle on or off CTRL+H
Eject CD (when only one CD drive) CTRL+J
Play or pause playing CTRL+P
Stop playing CTRL+S
Audio playback, turn repeat on/off CTRL+T
Zoom video size CTRL+Z
Video : rewind video. Audio : return to normal speed. CTRL+SHIFT+B
Fast forward through song or video CTRL+SHIFT+F
Show Zune Help F1
Mute sound F7
Decrease sound volume F8
Increase sound volume F9