I thought that this would be an easy google search to find out, but when I try to batch process large numbers of files in photoshop, usually to convert from tiff to jpg for printing or web use, I get the error message that I have tried to process too many images, and the process stops. This seems to happen after about 200 images. I am running CS5 on a new iMac with plenty of horsepower, fast processor, 8 gigs of ram, images from a 5d Mk II or an Olympus E-P1. Is there a standard limit to the number of files that can be processed, or is it related to file size? Thanks for your input!