Hopefully you're using Windows - (have no info for MAC users, I've asked but no response)

Hold down shift key and right-click the file you want to open with another player, select "Open With" select the player you want to use. You can select to open all files of this type with that player.

I've not done this myself as I'm happy with my player at present.

But it seems the quickest way that I've heard.

Good Luck

__________________
~Kath~
Always judge a person by the way they treat someone who can be of no possible use to them