Superdrive not recognising DVD's

[chrisbicker]

had trouble with my iMac so i reset a few things, PRAM, SMC etc. and erased my HDD and reinstalled Snow Leopard

but since then, i've put a blank DVD in my superdrive and my iMac won't recognise it.

i thought it best to try disk utility to try and eject the blank disc but to no avail as my disk utility shows the attached following information


any ideas

 

[gullySn0wCat]

Go to System Preferences > CDs & DVDs and make sure the top two options are set to "Ask what to do"

To force a DVD or CD to eject, restart while holding the left mouse button.

 

[chrisbicker]

Nothing....

Still nothing, got my DVD out and still not recognising any cd's dvd's etc....

 

[MacHamster68]

had similar problem on my iMac core duo with combo drive , older dvd's i created when i was using windows will not play on it in OSX SL no matter what i tried even reinstalling SL ,but they play under osx tiger in the same iMac combo drive and they play in a external usb dvd rw drive just fine using SL
and they play in the combo drive if i use the linux partition , so i copied them using linux and not tinkering settings just plain copy and the copies work in OSX SL