dvd/video player seems locked!

No its not me locked, its the dvd/video player this time seems locked. Checked but the childlock is not on but the controls on the front can't be used to eject, play, etc. We can only operate by the remote control which is nearly always lost! Any ideas? Oh and of course, the warranty is only up two months!

Going back into the innards of my memory (ie I remember something from a long time ago!) I used to have something like a video recorder or something that I could lock the player's buttons by pressing some keys on the remote. Check your manual or if that's lost, google your player model and instructions (or operating manual).