With the launch of the Wii in territories using the PAL television system, it has become apparent that in most cases the games supplied for the Virtual Console run in 50 Hz mode and in their original unoptimized state. Unoptimized PAL games run roughly 17% slower than their original speed in 60 Hz and have borders covering the top and the bottom of the screen. Setting the Wii console to 60 Hz mode does not force the 50 Hz game into 60 Hz mode (as is possible on emulators and modified PAL consoles).