Industry
Part of Family archive case studies are rare: what to use instead
What the published project accounts agree on as of 2027
What the published project accounts agree on: across film, tape and digital preservation guidance, the same four conclusions recur. What they.
What to take away
- Storage first, scanning second. Commonly cited targets: 65 to 70 degrees F and 35 to 50 percent relative humidity for paper and prints.
- Choose formats onceFFV1 in Matroska or H.264 MP4 for video, WAV or FLAC for audio, TIFF for prints.
- Copyright applies to studio portraits, commercial recordings and broadcast tapes.
- Copy the decaying items first, check a sample of every batch, refresh drives on a schedule.
- Expect the work to take longer than the box suggests.
How to read the dates in these guides
No guide cited here carries a 2027 revision date. The 2027 in the title is the review year for this reading list, not a claim about the sources. Each source is named so you can check its own date.
Two named accounts carry most of the weight. The National Park Service Conserve O Gram series is numbered and written for museums, and sheets 01-02 and 22-01 cover storage conditions and digitization. The Michigan State University Libraries guide is a reading list built for smaller collections.
For judging how much weight to give any one guide, the notes on how published archive studies are read and where real numbers come from set out the method.
Storage conditions decide the timetable
Every guide puts the room ahead of the scanner. Cooler and drier slows the chemistry that destroys film, tape and photographs, buying time before copying starts.
Published guidance gives typical targets rather than one fixed number. NARA's storage guidance and the Park Service sheet on temperature and humidity push the same way.
| Material | Temperature | Relative humidity |
|---|---|---|
| Paper and prints | 65 to 70 F | 35 to 50 percent |
| Acetate film, color negatives | Below 50 F | 30 to 40 percent |
Michigan State University Libraries' page on film preservation and archiving explains the link between temperature, relative humidity and vinegar syndrome, and points to a research institute's storage specification for acetate film. Vinegar syndrome is the breakdown of acetate plastic, and you smell it before you see it.
[figure 1]
Storage vs. copying timetable
Cooler and drier
- Vinegar syndrome
- slowed
- Time bought
- more
- Copying race
- slower clock
- Order of work
- store first
Warm room
- Vinegar syndrome
- accelerated
- Time bought
- less
- Copying race
- faster clock
- Order of work
- scan first
A house without a basement still has options. An interior cupboard on a north wall beats a garage, a loft or a shed. For a cottage or porch, the Canadian Conservation Institute's notes on light and environmental damage are the place to start.
The notes on which photographs are at risk first explain why the material, not the subject, sets the order of work.
Formats are chosen for survival, not sharpness
The second agreement cuts against instinct. The University of Michigan Library's guidance on audio and video warns that software keeps evolving, so a format that opens today may not open in ten years.
Where the guidance is concrete, it names containers and codecs. Institutions keep video masters as FFV1 inside Matroska, with an H.264 MP4 copy for viewing. Audio masters are kept as WAV or FLAC, and prints are scanned to TIFF with JPEG for access.
[figure 2]
Format choice criteria
- Open source or proprietary?
- How does it handle compression?
- How much user support exists?
- Is it stable for how you use files?
- Decide as you create new files
The Park Service Conserve O Gram on digitizing audio and video recordings covers the same ground and includes the cost factors households underestimate most.
What a first project costs
Typical ranges in US dollars for a household starting from nothing, not quotes.
| Item | Typical range | Note |
|---|---|---|
| Acid-free document box | $5 to $15 each | Cheaper in packs of ten |
| Photo sleeves, pack of 100 | $15 to $30 | Polyester or polypropylene |
| Wire shelving unit | $60 to $150 | Keeps boxes off concrete |
| External hard drive, 4 TB | $90 to $150 | Buy two, keep one off site |
| Scanning, per film reel | $15 to $40 | Longer reels cost more |
| Scanning, per photograph | $0.25 to $1.00 | Ask about resolution and format |
Scanning services vary most, so ask two vendors the same questions. Boxes, sleeves and two drives usually come in under about $500.
A fuller comparison of home archive supplies by cost and upkeep sets the same items against each other over five years.
Example: a first project in seven steps
The sequence protects the most material with the fewest decisions, assuming no prior equipment.
A first project in seven steps
- Move the box somewhere cooler and drier this month, off the floor.
- Sort by materialfilm, tape, prints, negatives, textiles. Note any vinegar smell.
- Copy the decaying items first, then work through the rest material by material.
- Choose formats once, before copyingFFV1 or MP4 for video, WAV for audio, TIFF for prints.
- Capture at the highest resolution you can afford, then open a sample from every batch.
- Name folders with a date and a family name, in a scheme you will still understand in five years.
- Keep two copies on separate drives, one off site, and verify the files once a year.
On drives, a commonly cited refresh interval is three to five years for spinning disks, with an annual check that the files still open. Replace on the schedule, not after a failure.
Naming is the step people abandon. The comparison of numbering and naming systems for family history files shows why a fixed scheme beats a clever one.
A copy you have never opened is not yet a copy.
