Sorry, I gave you wrong process name, it's packedmediawidget, not player.

If result is still nothing, than launch program from command line, its path is /opt/packedmediawidget/bin/packedmediawidget

It should be already running anyway, maybe it went outside your screen. Do you have the new portrait mode hildon-desktop? I'm sure about it because something weird happens when a qt widgets does not load properly (because path is wrong or bin has no executive right), screen freezes and almost all widgets get removed by themselves.