I'd be more concerned about drugstore processing. For instance, a one-hour lab delivers prints that discolor or fade an hour later, while with a next day lab they will fade within 24 hrs. There is also an
inverse equation by which they change the fixer every 24 years. The quality of the film is determined
by reading the batch codes or expiration date ... for example, if it's stamped on the box in cuneiform,
you might want to pay a higher price elsewhere.