Probably belongs in the copyright forum, but theoretically, digital would not actually be making money from selling your copyrighted work, he is making money from renting his machine. IMHO it would not be his responsibility, nor even his right, to determine the actual rights holder of any and all material that are brought to him to be copied. That responsibility, and liability, would remain with the individual ordering the job and presenting the artwork to be copied. Could Kinko's demand proof of authorship before performing a job for me? I think not - unless I'm asking them to copy 20 dollar bills, its none of their damn business. (Now, back to counting angels dancing on the heads of these pins)