I had the exact same problem. The silver tape holder would eject half way, but then stop. The sucker would not continue to open the casette door. TRY TO TAKE THE BATTERY OFF THE UNIT FOR 30 MINUTES, THEN RECONNECT IT. I did this, and the camcorder door worked perfectly. Now I can return the new camcorder I bought last week.
Good luck. Hope this solves your problem.
Glenn Gillen, Metairie, LA., August 2005