How to save album art

I have previously saved album art to a folder of its own. I have more album art that downloads automatically with song downloads but cant seem to save it to anywhere. I want to make some disc labels but can't access these files to use. How do I do this. The first time must have been a real fluke. I,ve not been into this very long so please excuse my ignorance.

I'm a little disappointed that nobody has attempted to help with this problem