I've created a 15 second sequence in after effects which is going to be played across 4 screens at an event (800x600) hence the rather odd finial size of 3200x600.

I now have the problem that none of after effects built in encoders allow me to export at this size, and neither will any other peice of software I have such cleaner, premiere, compression master etc.

The size of the rendered avi without encoding is 4gb, which is much too big.

The ideal format is either divx or mpeg2 as they retain very good quality whilst drastically reducing the file size - I have to update these files remotely.

Can anyone suggest a peice of software or perhaps another way of doing it?