XBMC Media Center is a free cross-platform media player software and entertainment system application framework for Linux, Mac, and Windows. XBMC is capable of playing back and streaming all popular video, audio, and picture formats out-of-the-box.
XBMC Web Site
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Croatian, Romanian, Korean, French, Dutch, Polish, Maltese, Slovene, Icelandic, Czech, Finnish, Italian, Hebrew, Esperanto, Catalan, Greek, English, Portuguese, Serbian, Slovak, Chinese (Traditional), Swedish, Turkish, Indonesian, Norwegian, Brazilian Portuguese, Chinese (Simplified), Danish, German, Japanese, Spanish, Russian, Hungarian