Copsy›Z CAM card backup

Back up Z CAM footage on a Mac — free and verified

Written by a working DIT · Copsy · Last verified June 2026

Short answer

Copsy is a free Mac app that backs up Z CAM footage the right way. Plug in your CFexpress card or recording SSD from a Z CAM E2, E2-S6 or E2-F6 and Copsy detects the media, copies your ZRAW or ProRes clips to an external drive and to Google Drive or Dropbox in parallel, verifies every file with ASC-MHL checksums. It organizes by date and source, then pings you on Telegram when it's done.

No drag-and-drop guesswork, no card limit, no signup, and it's free. macOS 13+ only.

Download Copsy for Mac → · macOS 13+ · no account needed

Why Z CAM footage needs a verified backup

Z CAM's E2 line records big, fast files: ZRAW and high-bitrate ProRes to CFexpress Type B cards, and on the E2-F6 / E2-S6 you can record straight to an external SSD over USB-C. Those formats are dense and unforgiving, so a single dropped block on copy can corrupt a clip you can't reshoot. Dragging a card into Finder gives you no proof the copy is complete and intact. Finder happily reports "done" even when bytes are missing.

A verified offload solves that. Instead of trusting a progress bar, Copsy reads each source file, writes it to your destination, then re-reads and checksums both sides, so "done" means the copy is provably identical, clip for clip. That is a real backup, not a guess.

What Copsy does with Z CAM media

When you plug in a Z CAM card or SSD, Copsy…

Detects the media by its contents — not by a card label — so Z CAM E2 / E2-S6 / E2-F6 media on CFexpress or an external SSD is recognized as a source to offload.
Copies ZRAW and ProRes clips to an external drive, and optionally to Google Drive or Dropbox in parallel during the same offload.
Verifies every file with ASC-MHL checksums, so each clip is confirmed bit-for-bit on both the drive and the cloud.
Organizes the offload by date and source, so your Z CAM clips land in a clean, predictable folder structure instead of a flat dump.
Notifies you on Telegram when the card is finished and verified. Walk away and get pinged.

How to back up a Z CAM card, step by step

Connect the media. Insert your Z CAM CFexpress card via a reader, or plug in the recording SSD directly. Copsy detects the media by its contents, so a Z CAM card or SSD is recognized as media to offload.
Pick your destinations. Choose an external drive as the primary backup, and optionally connect Google Drive or Dropbox so Copsy copies there in parallel.
Start the offload. Copsy copies your ZRAW / ProRes clips and organizes them by date and source as it goes.
Let it verify. Every file is checked with ASC-MHL checksums on both the drive and the cloud — no silent corruption.
Get the all-clear. A Telegram message confirms the card finished and verified, so you know it's safe to reformat and keep shooting.

ZRAW, ProRes, CFexpress or SSD — Copsy handles them the same way

Because Copsy identifies media by what's on it, the workflow is identical whether your E2 wrote ZRAW for grading latitude or ProRes for a faster edit, and whether the footage lives on a CFexpress Type B card or an external SSD. You don't pick a "camera profile." You plug in, confirm the source, choose destinations, and go. The same applies across the E2 family, including the E2-S6 and E2-F6.

An honest note on what Copsy isn't

Copsy is macOS-only, so there's no Windows build. It does not do LTO/LTFS archiving, and it has no NLE panel integrations (no Premiere or Resolve plugin). If your pipeline depends on tape archive or a studio toolchain, Copsy isn't a full replacement for those pieces. What it does, it does for free: detect the card, copy it to a drive and the cloud in parallel, verify it with ASC-MHL, and organize it by date and source.

Frequently asked questions

How do I back up Z CAM footage on a Mac?

Plug your Z CAM CFexpress card or SSD into your Mac and open Copsy. It detects the media by its contents, then copies your ZRAW or ProRes clips to an external drive — and, if you connect one, to Google Drive or Dropbox in parallel during the same offload. Copsy organizes everything by date and source and verifies every file with ASC-MHL checksums, so you know each clip copied bit-for-bit. When it's done it can ping you on Telegram. It's free, with no card limit and no signup, on macOS 13 or later.

Does Copsy work with Z CAM E2 cards?

Yes. Copsy detects camera media by its contents rather than relying on a card label, so Z CAM E2, E2-S6 and E2-F6 media — whether you record to a CFexpress card or to an external SSD — is recognized as a source to offload. It then copies and verifies your clips like any other supported camera card.

Does Copsy verify Z CAM files with checksums?

Yes. Copsy verifies every copied Z CAM file with ASC-MHL checksums — the same film-set and Netflix-delivery verification standard professional offload tools use — so you know each ZRAW or ProRes clip copied bit-for-bit with nothing lost or corrupted.

Can Copsy copy to a drive and the cloud together?

Yes. Copsy can copy your Z CAM footage to an external drive and to Google Drive or Dropbox in parallel during the same offload, so your local backup and your cloud copy happen together. The cloud destination is optional — connect it once and Copsy mirrors the offload there too.

Is Copsy free?

Yes, Copsy is free to download and use today, with no card limit and no account required. It runs on macOS 13 or later. It is macOS-only — there is no Windows version, no LTO/LTFS support, and no NLE panel integrations.

Offload your next card for free

Copsy — a free Mac camera-offload app. Verified copies to a drive and the cloud, nothing lost.

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