How to Remove Stuck MiniDv Cassette from Canon Elura Camcorder?

Subject says it all really... I have a Canon Elura camcorder which plays/records on MiniDv cassettes. One of the tapes is now stuck in the cassette sleeve. I can open the compartment to remove the cassette, yet it doesn't activate and open... it only "whirs" for a second or two and then stops. Any suggestions or quick fixes? Much thanks!