This tip is for Linux Mint with the MATE desktop environment. While Cinnamon uses Nemo as default filemanager, the default filemanager for the MATE desktop environment is Caja. In Caja it is not possible to view the metadata of music and image files.
But there is a working solution for the Caja filemnanager to this shortcoming. It comes as a package called mediainfo-gui. To install this package, the following needs to be done:
Make sure the filemanager is closed
Open a terminal
Type the following command:
sudo apt-get install mediainfo-gui
When the package is installed, open the filemanager and select an image file or a music file. Now right click on file and select: Open With > Other Application > Mediainfo. Now you can review the metadata of your image and music files.
Although this tip is meant for the Caja filemanager, it could be useful under other filemanagers.