Although this just comes to trial and error and something people can work out for themselves, but some people just like a quick and easy way of knowing how to put their media and also what files they need such as cover.jpg.
It does sound a daft request but I know that some media players are different I downloaded a program for movies and although all my movies are tagged but this movie program didn't like my file format and did not import all of the movies.
Regards
Mark
Professor of hare brain ideas