Locking a file on USB

[trickson]

Hi all,

I want a trick or a small utility that allows me to lock a file on external media (USB stick, or other MP4)

The file to protect my case is a MP4 (music video). When it connects to a computer, it behaves like a USB key. A simple file mounts on the desktop to load audio or video you wish to save. At this level, I want to secure my file in question so that it can not be removed, but simply be read. But it should remain available for reading.

Thank you for the info.

[Dwight]

(Apple I) effectively prevents the build file without affecting the reading but still easy to change nonetheless. But also a connection to the key on a PC removes this protection with a simple clip left mouse which allows us to build this file directly to the trash.

[Chatwin]

If it acts like a USB key is that the file system is FAT32, you can not protect this file.

Moreover, whatever the file system, if someone has the key in his hands, he will do what he wants in your file.

The best way would probably write a "PLEASE DO NOT REMOVE" in the filename.

[chroma]

To accomplish your purpose i'll advice you to use a CD disk rather than the USB drive, To distribute a read-only file, we have the CD-R and DVD-R, from a few years ago. And there are few softwares which can password protect your USB key, use it for better security.

[Macarenas]

I am not very constructive, but share the solution given by chroma (which is currently the best) I do not see how you can do. A CD-R does not cost so much. Sure, it takes more space than flash drive and you can scratch, but its better option. You can also use the folder lock utility to save file with password.

[Raiz]

Have a look at following helpful threads for you:

Usb file transfer lock up
How to Protect USB Drive Against Formatting and Deletion of Data?
Tips to Lock a USB with BitLocker