Aiff to AC3

[Anakin Skywalker]

I have an aiff (5.1 Channel) file. How can i trasform it into an ac3 5.1Ch file?:confused:

Thanks :) :D

[DSPguru]

convert this aiff into wav (using philips' tools, for example), and use ac3machine / soft encoder.

[Anakin Skywalker]

Thanks! :)