I am sorry to say this, and I am sure almost everyone might disagree with me, but I find the default media player that comes with N800 to be the best one. [...] Canola is probably the second best player [...] UKMP and Kagu are Audio-only. Both have horrible user interface(except kinetic scrolling) if you ask me but many people seem to like it. UKMP takes forever to load on my tablet and I can't uninstall it without attempting several times and can't install a new version without uninstalling the older one.