It would be better if the filemanager can choose which application to play a video:D
Im confused with smplayer, as its complexity scare me away; and the default media player cannot play some videos, also unable to choose play audio only.
Better to have a simlified mplayer frontend or just let the file manager to play video with it.
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Maybe make a "Preview-based" file manager as cool as possible?
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Port gnome-mplayer to maemo
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change the default media player backend to mplayer?