My pc is stuck

Leave the mp4 to run out of battery and thn simply recharge it with a pc and a usb cable.

if your PC have restart button then open your PC and check the power cable slots and change them into a reset mode removing reset cable to reset slots and attach to power slot. Then you can power your pC with reset button. If you can open front case then you can outside the button .

To verify there is nothing stuck in your drive, turn off your computer and try manually pushing the tray in GENTLY and feel if there is something blocking the tray moving. If there is nothing preventing the tray from moving manually push the tray in - start your computer and try it again. Use the eject function in windows explorer and try the retract button again. If teh button will not work try pushing the tray in manually again. Once the tray starts moving in it should automatically retract the rest of the way. If the unit will not retract on it's own by either method then the drive should be replaced.

I'd try booting windows into safe mode and disabling windows firewall then trying to boot up normally. I've also heard this may be some kind of a virus.

its stuck??how weird, just heard of this..., nothing u can do with the device if its run properly in other computer, just repair the OS I think

there is nothing to be worried about. it sometimes happen tht many dvds run very smoothly and some not. its common

already fixed

Try and manually move the carrier. If it is stuck, dont forcefully move the carrier.

I had this happen and I had to get a new screen fitted.