GeeXboX is a media player software. It can play videos, play music (with visualization) and display photo slideshows.

Requirements:
-SD card (non-SDHC, formatted in FAT/FAT32)

Optional:
-USB keyboard
-Bluetooth mobile phone (MIDP 2.0-compatible with AT+CMER implementation)
-USB ethernet adapter/PC-to-PC link cable (theoretically any model supported by linux 2.6.24.4 should work)
-USB storage (flash disks, card readers, external enclosures, etc. Supports reading of nearly all major *nix/Win/Mac partition types and writing the majority of them except NTFS/UFS)

Loadable File Sources:
-Front SD
-USB Storage Device
-Network Shares
-Network Streams

Wiimote Controls: By default the wiimote is the remote control. When the bootsplash progress bar is reaching its end, press '1' and '2' together. If the wiimote is found and connected, all four LEDs will light up and wiimote will rumble for 2 seconds. If not, press '1' and '2' to retry after LEDs stop flashing.

Arrows - navigate OSD menu/move image
Home - OSD menu display/autozoom image
A - pause playback/start and pause/restart slide show
B & Arrows - navigate DVD menu
B & A - select in DVD menu/view image in original size
B & Home - stop playback/quit slide show
-/+ - control volume/scale image
B & -/+ - seek forward/backward during playback
1/2 - play previous/next item in playlist/slide show
B & 1/2 - unmount and mount front SD
B & A & 1/2 - reboot or shutdown

(No, you don't have to point your wiimote at the sensor bar, which isn't powered on anyway.) Don't press the 'power' button on wiimote. Doing that will not shutdown GeeXboX and you will have to reconnect by pressing '1' and '2' again. Holding down button(s) will not send repeated commands. You have to press as many times as needed. To add or change button definitions, edit GEEXBOX/etc/lirc/lircd_wiimote.conf and lircrc_wiimote.

Keyboard Controls:
Use arrow keys to move around in the menu. For more detailed info on keyboard controls, view help in menu, consult GEEXBOX/etc/mplayer/input.conf or the GeeXboX site (GeeXboX HomePage, some info is outdated though).

Bluetooth Mobile Phone:
Not all bluetooth-enabled phones are usable. For an incomplete list of usable models, see anyRemote · Control your computer with your phone (GeeXboX for wii does not use anyremote though). Models listed as working in bluetooth AT mode should be usable. You have to specify the bluetooth MAC of your mobile in GEEXBOX/etc/bluez. When GeeXboX boots up and finds your mobile, you will be prompted for password. The default password is '0000'. Key definitions in this release are based on Benq-Siemens S68. To use other models or to customize key definitions, you many have to edit GEEXBOX/etc/lirc/lircd_bluemobile.conf and lircrc_bluemobile. Some (Sony)Ericsson models can also be used with the 'bte' driver (GEEXBOX/etc/lirc/lircd_bte.conf and lircrc_bte).

Supported Formats:
-All a/v formats supported by MPlayer (yes, rmvb included), with the exception of WMV9 audio
-Http/udp/rtp/rtsp network streams (shoutcast, icecast, lan unicast, multicast and VOD)

Aspect Ratio:
By default, all video will scale to 640 pixel width while keeping the original aspect ratio. If the scaled height exceeds the screen height (for instance 480 pixel for NTSC Wii), the video won't play. This means for NTSC Wii, all video must have an aspect ratio of 4:3 (640:480) or greater. If your video happens to have the 'wrong' aspect ratio, you may consider editing the 'xy=640' option in /GEEXBOX/etc/mplayer/mplayer.conf. For details, consult MPlayer's online documentation at MPlayer.

Bugs:
-Wiimote LED light won't be on while connected to wii.
-MPEG4 playback was slow
-If too much USB devices are connected (USB Hub), GeeXboX goes very slowly
-If I change the background.avi, the menu shows up mirrored
-On some Wiis there is no loading screen. Then the Kernel messages show up. Not a big deal, GeeXboX boots up though.
-if you get a black screen and it doesn't load in a few minutes: format SD card on a Windows computer

Network Sources:
If you want to use shoutcast/icecast etc., remember to set long blacklist or short white list in GEEXBOX/etc/netstream. Better still, just define a few netstreams pointing to the broadcasts you desire and disable shoutcast/icecast scan. The reason for this is because every broadcast url obtained by GeeXboX from scanning the server is saved in Wii memory as a playlist file. Thousands of such small files soon eat up all available space. For uPnP shares over lan, avoid exporting huge and complex directories.

Source & Download:
Homebrew apps/GeeXboX - WiiBrew