Bill Pierce
Well-known
While I hope other folks jump into this thread, it’s not so much a discussion as it is some observations on something I learned on this last trip. Museums and other photographic organizations are beginning to store images digitally. These can be scans of prints, negatives or transparencies in their collections or images from digital cameras. For the most part these digital files will be stored on hard drives. Solid state drives are still too pricey for many folks storing large volumes of images. And folks have realized that CD and DVD’s have a limited lifetime.
Sadly a few of them don’t realize that hard drives and even SSD’s have a limited lifetime. The mechanical components of hard drives can obviously fail, but the digital images themselves can decay over time. Even the hardy SSD’s with no mechanical parts have a limit on the number of searches they can perform (although that is a very large number). In other words, there is no guarantee against failure and the loss of the stored images.
The reason we store digitally is that we can make many copies and copies of copies and there will be no loss of quality, not something that was true when you made copy negatives and duplicates on film. The value of digital storage comes from the fact that you can make multiple copies so that when one fails you have an identical back up. And before age effects the stored images, you can transfer the files to new media.
I think most photographers know that and keep two back ups at home and one off site - and sometimes add cloud storage. Why a few organizations think that one set of digital files is OK, I don’t know. Perhaps it is because those folks aren’t photographers.
Sadly a few of them don’t realize that hard drives and even SSD’s have a limited lifetime. The mechanical components of hard drives can obviously fail, but the digital images themselves can decay over time. Even the hardy SSD’s with no mechanical parts have a limit on the number of searches they can perform (although that is a very large number). In other words, there is no guarantee against failure and the loss of the stored images.
The reason we store digitally is that we can make many copies and copies of copies and there will be no loss of quality, not something that was true when you made copy negatives and duplicates on film. The value of digital storage comes from the fact that you can make multiple copies so that when one fails you have an identical back up. And before age effects the stored images, you can transfer the files to new media.
I think most photographers know that and keep two back ups at home and one off site - and sometimes add cloud storage. Why a few organizations think that one set of digital files is OK, I don’t know. Perhaps it is because those folks aren’t photographers.