I recently purchased Mp3tag and have the purchase and registration codes. The instructions for registration say to do this:
To finish registering the software:
Registration may vary depending on the program or license you have purchased.
1. To open the registration screen, look on the top menu row of the software for either "File" or , e.g., Accounts, Invoice, etc. Click this to open the menu and then click Register Software.
2. Enter your Registration Code. We recommend using copy and paste to eliminate entry errors. The code is case-sensitive.
I have found no way in any of the Menus at the top of the program that will allow me to registrar my software.
Any help appreciated.