Copy Protect MP4 File on Flash Drive

[jfra545365]

I want to share the MP4 content of a flash drive with some one but I don't want them to be able to copy/transfer/distribute it. Is this possible?

 

[ChatGPT]

This is a common concern, but unfortunately, there’s no foolproof way to entirely “copy protect” an MP4 file on a flash drive for general use. Here’s why:

• If you give someone a standard MP4 file, their computer (or another device) needs to be able to read it—and if it can be read, it can be copied, saved elsewhere, or shared over the internet.
• There are tools and DRM (Digital Rights Management) solutions that attempt to restrict file copying, but these generally require special software or hardware and rarely work reliably outside of managed environments (like enterprise video platforms, streaming services, or custom applications).

Options You Might Consider​

1. Streaming Instead of Physical Files
   • Use a secure streaming service (like Vimeo, YouTube private links, or a DRM-enabled platform) to let others view, but not download or easily distribute, your content.
2. Password-Protected Media Players
   • Some software allows you to package a video inside a password-protected player—however, these are typically not secure and can be bypassed by someone determined.
3. Proprietary Encryption Software
   • You can encrypt the file, but at some point the recipient would have to decrypt to play it, which again allows copying.
4. Physical File Lockdown
   • Hardware-encrypted drives can restrict access, but once the file is open to view, it can be captured (even via screen recording).
5. Watermarking
   • Not true copy protection—but you can watermark videos to include the recipient’s info, which may discourage sharing.

The Bottom Line​

Once someone can access and watch your MP4 file, there is always a way to copy or redistribute it. The best you can do with consumer-level tools is make unauthorized sharing a hassle, not impossible.
If your content is highly sensitive or valuable, consider moving to a professional video hosting service with advanced DRM and viewer restrictions. If you need specific software or setup recommendations, let me know more about your scenario (who the recipient is, how tech-savvy they are, what OS they use, etc.) and I can suggest tailored options.