Main screen :

A : Select folder/launch XBE/play WMV
B : Go to parent folder.
X : Mark/unmark file/folder (for copy, move, delete, rename).
Y : Go to root folder.
BACK : Go to parent folder.
START : Select drive/partition.
WHITE : Open Main Menu
BLACK : Return to system dashboard.
D-PAD UP/DOWN : Scroll up/down the list
D-PAD LEFT/RIGHT : Scroll up/down the list, 1/2 screen.
LEFT STICK UP/DOWN : Scroll up/down the list
LEFT TRIGGER : Go to Panel A
RIGHT TRIGGER : Go to Panel B
LEFT THUMB BUTTON : Toggle between Panel A and Panel B.
RIGHT THUMB BUTTON : Toggle file filter between "*.*", "*.XBE" and "*.WMV".

Main Menu :
START or A : Select item
B or X or Y or BACK : Close menu.
BACK : Close menu.
D-PAD UP/DOWN : Scroll up/down the list
LEFT STICK UP/DOWN : Scroll up/down the list
BLACK : Return to system dashboard.

Select Drive screen :
START or A : Select drive/partition
B or X or Y or BACK : Cancel
D-PAD UP/DOWN : Scroll up/down the list
LEFT STICK UP/DOWN : Scroll up/down the list
BLACK : Return to system dashboard.

Edit Mode (used for Rename and New Folder features) :
BACK : Cancel
START : Accept
A : Insert space
B : Delete
X : Backspace
Y : Switch case
D-PAD UP/DOWN : Select character
LEFT STICK UP/DOWN : Select character
D-PAD LEFT/RIGHT : Move cursor left/right
LEFT STICK LEFT/RIGHT : Move cursor left/right
BLACK : Return to system dashboard.

While playing WMV files :

B : Stop playback