Help needed printing VCD art

[menace]

I have some art that needs to be printed longer than an A4 (8.5 x14) for a VCD insert. Does anyone know how to do this in photoshop or some other program so that it recognizes paper sizes larger than the standard sizes? I have an HP 810C that recognizes banner printing but when you set it up in photoshop it always gives a crop warning--and if you ignore that it only prints up to the A4 size and not a pixel further??

Also, I am by no means set in photoshop--if you know of another program that allows easy banner printing please pipe up

[Conquest10]

can't you just do that in the printer settings? like set the paper size to banner.

[menace]

As I was saying the printer sets up for banner printing just fine but the programs do not recognize it. Thats what the issue is--having a program that understands what a banner is and lets you print to one via the HP settings.