Is there any way to confirm whether or not a track has Cover Art embedded in it?
I have some AAC files (M4A) which allegedly contain Art.
I don't have a fancy iPod to do this nor do I have the faintest idea how to configure Foobar to show it.
In Mp3tag make a new column with the value $covers()
Or press ALT+T and if you see a cover and left click on it and it does not open it is embedded.
If you edit a file with embedded cover in foobar, it will be deleted.
Just get the latest Mp3tag version and go to View > Tags...