Copy the whole card — never individual clips
A drone card is structured the way the camera wrote it: DCIM with numbered folders, .MP4 files beside their .LRV and .THM sidecars, plus flight logs that expect to find all of it together. Dragging just the nice-looking MP4s out of that tree is how people lose the sidecar files — and later wonder why their flight-log viewer shows nothing. The only correct first move is to copy the entire card, or at least the whole DCIM tree, into a folder named for the date and the card, like 2026-04-30_A. Copy, not cut: the card stays untouched until the copies are verified and doubled, and that untouched card is the insurance policy for the one shoot that cannot be repeated.
Two verified copies before anything gets deleted
One copy is zero copies — SD cards die, USB readers glitch mid-transfer, and a laptop drive that fails takes the only original down with it. The habit worth building is 3-2-1 in miniature: the card itself counts as the first copy, the working copy on your editing drive is the second, and the third goes to another physical drive or the cloud the same day. Verification matters more than people assume: a hash check — Get-FileHash in PowerShell, or the verify mode of a copier like FastCopy — proves the copy is bit-identical, while a file count only proves that nothing is missing. Until the final edit is delivered, the card stays in the drone bag, unformatted.
- Copy the entire DCIM tree, not selected clips
- Name the target folder by date and card: 2026-04-30_A
- Verify by hash — Get-FileHash or FastCopy verify mode
- Second copy to a different physical drive or cloud the same day
- Keep the card unformatted until the edit is delivered
- Format the card in the drone, not in Windows
After the edit: proxies, caches and render debris
The project doesn't end when you export: video editors leave their own junk behind. Premiere and DaVinci Resolve cache preview renders and media indexes that can easily reach half the size of the source footage, and abandoned exports pile up in temp folders until someone clears them. Proxies are regenerable by definition — deleting them costs an evening of re-rendering and nothing more — so once a project is delivered and archived, its cache folders can go. A junk sweep in Kleaner PRO clears the temp renders and leftover caches in one pass, which is exactly the kind of cleanup that is safe to automate: it touches derived files, never the footage itself.
The originals deserve one last decision before you call the project done. Keep the clips that made the cut in at least two places, and be honest about the rest: raw takes you will never touch again are dead weight, and once two verified copies exist, deleting them is not a risk — it is just hygiene.
Questions and Answers
How do I transfer drone footage to my computer safely?
Copy the whole DCIM folder off the card through a reader, verify the copy by hash or file count, and make a second copy on another drive before you do anything else.
When is it safe to delete drone footage from the SD card?
Only after two verified copies exist on separate drives — and even then, hold off formatting until the edit is delivered, because the card is your third copy.
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