video codec problem

hi every body

my client works on Adobe Premiere CS6 but a platfome windows, so the AIC codec does not exist on PC.
it may work until the last minute of his video files, and he asked me if he can encode H264, MP4.
because I do not have enough time to encode while AIC before the show
I say yes but what are the good adjustment of the codec for the catalyst read them without problem?

at the final, i must read 3 x 1920x1080 video files at the same time, it is a big screen mapping with 3 video projector

thanks a lot for your answer

Yves