When i start my imac for the first time , i open a disc drive or disc image ,first time i try to eject it , it takes about 15 secondes to eject .After the first time try it's work nicely.

This wil show you how to take it apart if that becomes necessary. But try this instead. First hold the eject button down for 5 seconds. I that fails look for a tiny hole near the disc slot. Use a straightened paper clip and push it in the hole firmly. This should eject the disc. Another option is to use firmware to eject the disc. Follow these directions: To eject a disc with Open Firmware commands, follow these steps:

1. Restart the computer.
2. Immediately after the startup sound, press and hold the key combination Command-Option-O-F.
   Note: The Command key has the Apple and () icons on it.
3. Release the keys when you see a white screen that says "Welcome to Open Firmware."
4. At the prompt, type: eject cd
5. Press Return, then wait a few seconds. The disc drive should eject any disc that is present, and "ok" appears behind your command when the action is complete.
6. Type: mac-boot
7. Press Return.
8. Your computer should now start up normally.
9. Instructions curtorsey eh.mac.ca

• Hi,
• The Super Drive may be trying to eject a disk that is not even physically there. this worked for me before as a kind of reset.
• Mac OS X - Force Ejecting a CD
  
  1. Restart your computer, and hold down the mouse button. If you have a 2 button mouse, hold down the left click.
  2. If your computer has an eject key on the keyboard, restart the computer again, this time holding the eject key.
  3. Open a Terminal window and type in drutil tray eject.
  Hope this works for you
  

Shut down the mac by holding in the power button for about 10 seconds.
Is the CD a system CD or something else?
If it's a system CD restart the mac and hold down the letter C on the keyboard. after about 30 seconds the mac should boot up into installation mode. If it does, click on the language then then at the next page go up to the menu bar and locate Utilities and disk utility. Run the disk repair then try and restart. (The flashing ? means that the computer cannot find a start-up drive with a valid system on it. The repair routine can sometimes fix that - it doesn't always though.)
If it's not a system CD and you obviously need to get it out before you can do anything else - restart the mac but this time instead of holding down the C key, hold down the click on the mouse. It takes 10 to 15 seconds (sometimes longer) but it will force the computer to eject t the CD.

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In your case, you have slot drive in your Mac Mini so try the command line that I have provided below. It is just a slight modification from what you stated you tried.

-EJECTING DISC USING TERMINAL-

From your Desktop:

•Click anywhere on a blank space on your desktop. Now you should see Finder listed near the Apple menu icon.

• From the Finder menu, click on Go, then Utilities from the
drop-down menu. This will take you to your Utilities folder.

• Locate and open the Terminal application.

• At prompt, type: drutil eject and press the Return key on your keyboard

(NOTE: If you have a CD/DVD drive with a tray, type: drutil tray open press the Return key on your keyboard).


If that procedure with Terminal does not work, there are two applications that you can try:
Disk Utility- You open the application, select the affected disc or the optical drive in the left sidebar window. Then select eject from the top of the Disk Utility menu. See if that work.

iTunes- Simply open the application, and select the eject icon at the bottom of the window.

Last but not least, I did notice you did not mention that you try this procedure:

Reboot your Mac Mini.
As the Mac Mini boots up, hold down all mouse buttons and keep holding them down until (hopefully) the cd ejects.
I am not sure if you have done all of these processes for ejecting your disc, but again these steps were not mentioned in your initial inquiry.

Let me know if these additional steps have helped or if they are in fact redundant.

Regards,

-Mactechtrainer

It may be stuck so what you can try are one of these options:

Option# 1
* Shutdown your iMac G4
* Before you turn on your iMac, hold down your mouse button(s).
* Turn your iMac on still holding the mouse button(s) down.
* You will need to keep holding, until your disc ejects as your iMac starts up. That should do it.

Option# 2
If it does not, try using the Terminal utility to attempt to eject the disc.

* Click anywhere on the blank space of your desktop
and then you should see Finder appear near the Apple menu icon located in the upper left corner of your screen.

* Now from the Finder menu, select Go > Utilities.
* Within the Utilities folder. locate the Terminal application and launch it.
* When the screen prompt appears, type:
drutil tray eject

Option# 3
If that does not work, you can also try ejecting the cd using Open Firmware:

* Restart your Mac and hold these keys:
* Hold Command, Option, O and F keys while booting up.

* Now type: eject cd

To exit the open firmware screen type: mac-boot

One of these 3 methods should eject your disc.
------------------------------------------------------------------------
If not, you may have a genuinely stuck CD in your drive and may need to take your iMac in to your local Apple retail store Genius bar or local Apple-authorized service center to have it safely and correctly removed.

Honestly, however, I have this same type of iMacG4- you will probably have the cd out by Option # 2 :)

Regards,

-Mactechtrainer

Reastart the iMac and at the same time hold down the mouse left click button. If that does not work.

1. Restart the computer.
2. Immediately after the startup sound, press and hold the key combination Command-Option-O-F.
   Note: The Command key has the Apple and () icons on it.
3. Release the keys when you see a white screen that says "Welcome to Open Firmware."
4. At the prompt, type: eject cd
5. Press Return, then wait a few seconds. The disc drive should eject any disc that is present, and "ok" appears behind your command when the action is complete.
6. Type: mac-boot
7. Press Return.

It would be very difficult to open up the imac to retrieve the disc as the CD drive is totally enclosed and would probably result in it not be functional after removing the disk. Have a look at the following article on the apple website
http://support.apple.com/kb/HT3007?viewlocale=en_US as it does indicate that the slot loading imac does have a hole for paperclip ejection. You could also try opening up disk utility and and clicking on the icon of your disk under the left hand column then go up to eject button and click eject. Hope this helps.

The iMac (Slot loading) computer's disc eject mechanism is electrical instead of mechanical. To eject a CD-ROM disc at startup that contains system software, press the mouse button until the computer ejects the disc. If the disc does not contain system software, wait for the iMac to start up and drag the disc icon to the Trash.

If either of these steps fails to eject the disc, push the drive's manual eject button with a small, blunt object like a paper clip. This button is located to the right of the CD/DVD slot as shown in Figure 1. The computer must be turned on to eject a disc in this manner.


Figure 1 Manual eject button

Once the disc is ejected, it extends just beyond its center hole so you can remove it from the drive. If the disc fails to eject, while holding in the paper clip, use another CD to gently push against the inserted CD. This gentle pressure may help to release the inserted CD.

Important: After ejecting the disc with the manual eject button, you must restart the iMac in order for the CD-ROM or DVD-ROM drive to work.
DONT FORGET TO VOTE

Ok, I assume you have hit the eject button on the keyboard. Try dragging the CD icon on the desktop to the trash can. If that doesn't work, Shut down the computer and start up while holding down the mouse button. This may take some time, but keep your finger on the mouse button right up until the disc comes out or the log-in screen has appeared. Some Macintoshes have a paperclip hole that you can insert a straightened paperclip into, manually triggering the eject mechanism. Another option is to open Disk Utility and choose the disc you wish to eject in the left-hand pane, then click on the Eject button. Sometimes you can successfully use the eject disc button in iTunes even if the disc is not visible to the Finder. Another option is to Open Terminal and type "drutil tray eject" to eject the disc/tray, and "drutil tray close" to close the tray. Lastly if your computer has an eject button on the keyboard, restart the computer holding down the Option key. When the startup disk selection screen appears, let go of the option key and press the keyboard's eject button. One of these should work.

Try this....after a lot of frustration and research, what i found on the internet for this problem was usless. I tried holding down the eject button for 15 seconds to reset the disc drive, still it would'nt accept the disc. As i literally picked up the phone to ring sony, as the ps3 was on standby i pressed the eject button multiple times and heard 2 beeps each time, still the system stayed on standby. After that i then tried just putting the disc in as normal as its on standby and the system booted automatically and accepted my disc. I hope this helps others, as mine now works perfectly.

(PSN ID is Burnsy333)