I transferred, mp4 file via copytrans to my ipod video 5g it doesn't work. Either tell us if there is a way to install codec in ipod or give us an alternative solution to push converted file in it
Reinstall your drivers using our program, CopyTrans Drivers Installer (free). You can find it here (see the bottom of the page): https://www.copytrans.net/download/
CopyTrans Drivers Installer will ask you to uninstall iTunes: this is a one-time procedure that we do to reshuffle the drivers' components. After you have done that, you can install and use iTunes again: your media library won't be affected.
If the issue persists, please contact our Support Team at copytrans@copytrans.net and send us the log files. Here's how to generate them: https://www.copytrans.net/support/preparing-log-files-to-contact-support/