SanDisk USB Flash Drive, 128 GB, Cruzer Glide - Files Cannot be Copied

I am getting an error message when I try to copy some of my files to the USB drive. I get an error message of “The file name …jpeg contains characters that are not allowed on all platforms and cannot be copied.” Any help adding these files would be much appreciated.

I get an error message of "The file name …jpeg contains characters that are not allowed on all platforms and cannot be copied."

What app is issuing the error?  Can you provide an example of a file name that is causing the problem?

Tons of finals will not add not just jpegs.

Well without the name of the app giving the error and examples of the file names causing the errors can’t help much.  Good luck.