These are 'compilation collections' of copyrighted songs (owned by others) which the Weber's probably licensed at one time. Whether those permissions still continue and extend to Internet downloads is something I question. Regardless it's virtually certain that no one will get their music from eMaxMusic's website (one created with a FREE Wordpress template) instead of through ITunes or Amazon.
These copyrighted songs certainly have significant value to their owners. However, I GUARANTEE you that neither eMax, MPIX or Roxy Weber "own" these.