iMac not taking in discs

[ELBdelorean]

Hello. I just bought a 21.5 iMac and am having a great time. However, the iMac will not take in any discs. When I try to put it in, the iMac doesn't automatically pull it in. I tried putting it as far as I can and waiting a long time. I've even had to use a credit card to get a stuck disc out after pushing it in too far.

 

[ELBdelorean]

Nothing? I guess not. I exchanged the iMac for another one at the Best Buy.

 

[norbiu]

I've been having the same problem with a 2006 C2D MacBook. It worked fine up until last year. Could this be software related maybe?