dzug2. It is the unreadable ones that I am referring to. It has often been stated that plates with unusual fonts, wrong sizes, bolts to alter characters and such like cannot be read by these camaras.
All US plates I have seen have been of the same size and with the same typeface - at least, statewide. They may not follow the standard letter and number configuration, but are all readable.
The same applies to the plates of every European country I have seen.
Only here are people obsessed with having a 'different' numberplate.