There is No Digital Archival Format
Just a reminder from Martin Scorsese and the reason I recommend some kind of analogue output your photographs:
“Everything we do in HD is an effort to recreate the look of film. Film, even now, offers a richer visual palette than HD. And, we have to remember that film is still the best and only time-proven way to preserve movies. We have no assurance that digital informaton (sic) will last, but we know that film will, if properly stored and cared for.”