How to protect copying files out of flash memory?

[c05338]

I have customers who want to buy large amount of flash memories but he wants to copyright all files inside it. The flash will contain files that will be delivered for his customers but they're not allowed to copy or delete any of the files the only allowed permission is to ready the files. I did so many researches and found many solutions but all have on function it WriteProtect the USB though I can't add files to Drive at all but I can delete or copy any file in the drive can somebody help please!

 

[rusabus]

I have customers who want to buy large amount of flash memories but he wants to copyright all files inside it. The flash will contain files that will be delivered for his customers but they're not allowed to copy or delete any of the files the only allowed permission is to ready the files. I did so many researches and found many solutions but all have on function it WriteProtect the USB though I can't add files to Drive at all but I can delete or copy any file in the drive can somebody help please!

At the end of the day, read permissions can at the very least allow a user to make a copy.

The only way I can think of to do something similar to this would be to write data to the flash drive that is not normally read by the OS; something like a serial number for the flash drive. Then instead of distributing your content as a normal document, distribute it as part of an executable that will only run if it is run from a drive with the serial number you have written to the flash drive.

However, even that could be circumvented by anyone who was motivated enough.

--Russel