when suppling 4 or more panel artwork please supply images (cmyk or greyscale : pdf : 300dpi : files only) as printers pairs of 246mm x 126mm images (includes 3mm bleed on all edges)and please name the files like so (remembering to orientate your images in the same fashion as the file name sugests):

jobnameDVDpages4and1.pdf

jobnameDVDpages2and3.pdf