Comment 6 for bug 1088018

Judging from the log that might be a mplayer bug. Could you try to run the mplayer command from the log without -af-add export=/tmp/mplayer-af_exportbmpucn:512 and -wid 0x2600025? That'd be

mplayer -channels 2 -quiet -slave -noidle -noconsolecontrols -nostop-xscreensaver -identify -volume 100 -softvol -msglevel all=5 -osdlevel 0 -delay 0.000000 -subdelay 0.000000 -subpos 0 -sub-fuzziness 0 -brightness 0 -contrast 0 -hue 0 -saturation 0 -nomsgcolor -nomsgmodule -nokeepaspect -ass -embeddedfonts -ass-font-scale 1.00 "/media/kitchen/6316-6AE5/Sasha Re Fa Si.MP3"

If that does work however, you might be affected by [1]. In that case it'd be great if you could try a file without spaces in its name.

[1] https://code.google.com/p/gnome-mplayer/issues/detail?id=618