Drag & Drop objects with information

Hey!

I am now making a dj turntable where the users will be allowed to use two soundchannels which they should be able to mix and stuff… My problem is not the sound, that is ok. But my problem is:

I want the users to have a list of all the mp3 files available for them, and with two “players” which they can drag and drop the items of the playlist to.
So if they drag one of the items in the list (either a flash component list, or a list I make myself in as3) to the player, the player will automatically start playing the song which are labled in the drag’n’dropped list item.

How can I solve this with simple As3? How can I provide the “player” with the URL of the song, through the list item which is dropped on the “player”?

Cheers,
Artheus

EDIT : This is all made in Flash CS4!