IMac does not recognize any disk at all

Hi, guys, here is something new, and I would appreciate if you can help me out!
I was watching a DVD on my iMac intel, and decided to play FIFA world cup for a while. So I booted my mac to Windows, while it's booting, I inserted FIFA world cup disk into the DVD driver as usual. However, the computer did not boot into Windows, instead it turned into black screen. I waited for a while, but nothing was happening, so I manually turned off the computer.
After, I restarted my computer, the DVD driver refused to recognize any disks (after inserting disks, the driver tries to read, and then ejects the disk). So I repaired the disk permissions, but nothing has improved. Then I verified the disk, the following massage came out:
Volume Header needs minor repair
The volume The volume sh needs to be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
Volume needs repair
So, I couldn't repair the disk, and I tried to repair it from my start up disk, but I couldn't, because the computer doesn't read the disk.
And now, my computer still can't read and recognize disks.
Thanks indeed for your help

Hi,
have a look with the 'Sytem Profiler' if there is the Disc Drive mentioned !
As for a solution you could try and do the System Update 10.4.8 again with using the combo update found here:
http://www.apple.com/support/downloads/macosx1048comboupdateintel.html
BUT, as with your Harddisc OSX partition still having to be repaired I'm not that sure if this a good idea.
You should try to make a backup at least of your important files and if you can try to find a friend with an external drive from which you can boot Mac.
Otherwise call Apple Care or go to the shop where you bought it for a repair as there is still the possibility that your Disc Drive itself is broken.
Regards
Stefan

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