How do I consolidate photos from old computers, drives, and memory cards?

Map the sources before moving files

List each computer, external drive, card, and old folder you plan to review. Give every source a short code, such as OLD-LAPTOP-1 or BLUE-DRIVE, and note its visible top-level photo folders and approximate date range. Start with the sources most likely to contain unique material, not necessarily the largest. This small map stops the project from becoming a pile of anonymous copies. Do not rearrange folders on the original sources while you are still learning what they contain.

Copy one source at a time

Create a consolidation intake area with a separate folder for each source, then copy the source’s photo folders into its matching folder. Retain original folder names inside that source folder at first. After copying, open a sample of image and video files from several dates and compare broad file counts or sizes with the source. A file browser may hide extensions or related files, so include a check for less familiar formats as well as common JPEGs. Record the date you completed each source copy.

Review and merge in manageable groups

Work through one source folder or date range at a time. Compare material that appears to be the same event using thumbnails, dimensions, capture dates, and file details, not filenames alone. Mark a preferred copy when there are duplicates, especially if one has a fuller resolution or a more complete caption. Move selected groups into your main date-and-event structure only after you can identify their context. Leave uncertain groups in a clearly named review folder rather than forcing a guess.

Keep a consolidation record

Maintain a simple table or note with source code, source location, copied date, date coverage, and whether it has been reviewed. Once a batch is merged, note its destination and any unresolved duplicates. Check that representative files open from the main library and that the library’s regular backup includes the new material. This record lets you pause for weeks and resume without repeating the same source or assuming it was empty.

Sources

These official sources can help you check the next step for your equipment.

1. Library of Congress: Personal Digital Archiving — Library of Congress: Personal Digital Archiving
2. Library of Congress: Preserve Your Digital Images — Library of Congress: Preserve Your Digital Images

Before making disruptive changes

• Do not use a bulk duplicate remover during early consolidation; it can mistake resized, edited, or differently named versions for disposable copies.
• Keep the original source folders unchanged until copied batches have been checked and incorporated into your normal backup routine.
• Files with the same name can be different photographs, while exact-looking images can have different quality or embedded descriptions.