I was wondering if anyone knew of a fix for the cover art in the media player?

Basically its as though its just using a thumbnail and then making it big so it looks blocky and rubbish when in the media player when the phone is held in portrait mode.

If not, are there any other media players you might recommend? I know of Museek and Mixzing, but the reason I'd like to stay stock is because of the controls on the lock screen - it would be a big pain to have to unlock the phone to skip tracks or pause.

I've also heard that in the contacts the pictures are also small and rubbish but I can't confirm that yet.