thx for info

i thought the 4480x2600 is the maximum of graphics, not movies.

why 16xHD:

A Client asked me for a setup for an installation with widescreen panorama with 8x Full HD Projectors.
So for crossfading i need to run in total 16HD movies at one time.

i´m new to catalyst,
i think currently you can have 4 outputs of 1920x1080 on one machine,
( with dualhead2go),
so i need at least 2 mac´s, each one should be able to play 8xHD.

is the playback resolution limited to x/y, or can the movie also be 7680x1080?
so my client only need to render 2 files, instead of 8.
it might also be easier for synchronization.

thx roman