|I happen to have an Acer laptop I was working on - a stiff wire or paper clip only has to be pushed less than a half inch in and the drive tray ejects easily. |
If you can feel something move a bit when you push the paper clip in, then the tray mechanism must be jammed inside - probably because a piece of it has broken off, or because a disk flew apart.
Did you drop the laptop, or did a disk fly apart inside that you know of ?
On the model I have, the drive is retained by only one screw on the bottom of the case in line with the middle of the drive - the nearest screw - a very tiny phillips (cross) head screwdriver required ( 00?) - you could remove that, but it would be difficult to pull the drive out of it's connection socket without damaging it's outside plastic on the tray if you can't get the tray to open. If you don't want to damage the drive and want to see if you can un-jam the drive, you'll need to find a service manual for your model online, and remove the bottom of the case properly so that you can push the drive out if it's connection socket without damaging it.
Or - you MIGHT be able to remove the keyboard and then be able to push it out from the top side - see the service manual.
OR - take it to a laptop repair place.