I been using codes almost everyday of the week.
Kind of starange thing is we have 3 Redboxs here in Albany,Or.
The one I use wass being moved or replaced.
So I went to the other location and their machine was down,couldn't rent or return.3rd spot I was able to return and rent again.
Went by the 3rd spot again to use,and the machine was frozen,screen was stuck.
http://www.insideredbox.com/codes/