Hello, I recall that Windows does not support long filename but Linux does. However, when I used a PC with both linux and Windows installed, there were issues when I copied files either from linux to windows or from linux to external hard drive. How about Mac OS and iOS? What is the maximum file name? Another thing is when I changed the file name of a file under Mac OS, I clicked on the name under the icon and typed. For example: this is the apple's user, that is the #$. Do space, ', # and $ on the filename get messed up if I copy the files from Mac OS/iOS to Windows, Android or Linux systems?