imac won't play DVDs in Yosemite

I'm not sure if you're being sarcastic or not, I'm probably not being clear enough. I am well aware that I do not have a Fusion Drive.

I am not sarcastic. I do not understand what you want to know.

If you have a question or an issue, you should start a new thread, as this one is already long and has a very different different subject.

Lex

Never mind, let's leave it there then. No offence intended. To me you sounded sarcastic.

or just a tiny bit annoyed?

Possibly.

Anyhow, let's see where we are when you've made a back up. Be interesting to get your findings whichever they are.

exactly. I've set the time machine to back up. So now i need to know how to get Mavericks from my old backups from say august last year or before yosemite upgrade, right? Am i going to try to install it alongside so i have the option to run on either OS?

any chance you guys could take this via email/message rather than clogging up the thread?

i'm actually following this to try and see if there's a fix, not really interested in waking up to 27 irrelevant email notifications!

no problem banger although we're looking for a fix so this IS relevant, no?

Yes, exactly.

Jbanger, we're trying to find out whether this is software or hardware or a combination of both. Until you know which you can't actually arrive at a proper fix.

What I want to do is make sure doubly that anybody that follows my instructions doesn't come to any mischief.

That's relevant surely?

maybe try condensing it so it's not 47 posts to sift through?

bare with us banger, i hear you, but i'm a stone mason not IT guy. We could take this to email, but maybe other computer clueless people like me would find it useful? maybe not?
Also bare in mind that there are zero fixes online, so all the threads are useless for that reason anyway, and apple remain silent, which makes me think they know exactly whats going on. sorry though...

Hi gumsie,,, i sure would be grateful if you could tell me how to extract mavericks from my external hard drive time machine backups and re boot my mac with that os... but here's my email address because i wouldn't want to cloak all the fixes to this problem that are pouring into this thread....(sarcasm)

actually before i do that, is that the done thing to put one's private email address on a public forum?

Hullo. Second question first, I'd strongly advise against putting your personal details here.

As to Time Machine, I don't use it and haven't since a corrupted backup way back. My experience of it is very little so I'd prefer not to comment on it.

Somebody here will undoubtedly have more experience of that aspect. Sorry.

Ok thank you again for all the previous help, i will start a new thread,
Take it easy
Alistair

I'll look out for it.

I don't use/like TM so don't want to give you the wrong advise about that aspect.