Forum Discussion
1 Reply
More than likely it's the disc and not the drive. This is a common error with the game. I have a Mac too so yeah I'm familiar with it.
There's this thread on the topic: http://forum.thesims3.com/jforum/posts/list/30/482235.page
This help article from EA, but you should be careful with some of these "fixes" in the Mac section: https://help.ea.com/article/what-steps-can-i-take-to-attempt-to-correct-a-disc-authentication-error
If I were you, I would try repairing permissions first, if you haven't done that. The usually helps for me. The steps for that are in the second link.
edit: and by disc, I mean the game itself...not that you need another disc. Some people have tried exchanging for a new copy only to have the same error.