The archival qualities of processed film only apply when it is stored in the dark of course (which is the usual situation). If stored in the light it deteriorates quite quickly. In sunlight it often only lasts a few hours until ruined.
Digital of course is easily deleted or lost, but can be copied an infinite number of times, so with care it can theoretically last forever.
Last edited by peripatetic; Nov 7, 2009 at 2:57 AM.