Does anyone know of a way to force the sony recorder disc tray to open?

I have a disc stuck inside and when i switch off the recorder and back on again it says "Power Off".

Holding the power off button for about 12 seconds switches it off. But I cant get the disc out. Is there a hole anywhere on the drive (I cant find one) like some CD players, where you can stick in a pin to release the drive?

Please help!

Cheers