I am a film and digital shooter. I have EVERY shot I have ever taken on film going back 40 years. I have a good file system and can find ANY negative or slide within a minute or two. I am also a tech savy person and have been building my own home computers since the late 1970s. That was BEFORE the PC existed. I also began programing at that time. I currently own a Pentax K5 DSLR but also own and continue to use about a dozen film cameras. My favorites are the Pentax K2 and MX, PZ-1P and MZ-S, and finally 645. I still bring out the old Kodaks, AGFAs and Yashicas on occasion. I back up my computer every other day with a rolling backup and I keep several copies of by back up on more then one hard drive. So it would be IMPOSSIBLE to lose anything. WRONG! With my digital files I often copy them to my computer at the end of the day. Once a month or so catalog, tag etc the photos and file them in a different archive folder on the hard drive. Well last time I did so all of the files for the 6 week period were corrupt. I could see the image name on the hard drive and they files were the correct size BUT if I tried to open them I go an error and no image. Well I have SIX copes of these folders backed up on TWO external Hard Drives. One must be good. ALL are corrupt. I lost over 6 weeks of shots. Many were valuable and cannot be replaced. FILM RULES!!!!