Encrypted disk image did not burn encrypted

[Schtibbie]

Grumble.. This business of backing up the Mac really sucks. Ok, so I used Disk Utility to create a 4.7gig sparse disk (encrypted), copied my document folder in there, and then unmounted it. I was left with a nicely encrypted documents.spareimage file on the desktop. So far so good.

So, I go into Disk Utility where I see that image, select it in the left pane and click the Burn icon. It asks for my password and proceeds to burn a DVD.

But when I open the DVD, it has all my stuff UNencrypted - not in an encrypted disk image like I thought i was burning!!

What am I doing wrong?

 

[mkrishnan]

There's no such thing really as an encrypted DVD. What you're doing wrong is that you're imaging the DVD with the disk image. You want to instead copy the disk image as a *file* onto the DVD. Then, you'll get a DVD that you can open without a password, but on the DVD, there will be an encrypted diskimage that, just like when on your desktop, will not be readable without password.

I believe the simplest way to do this is to put the DVD-R in the drive, open it in Finder, and then drag the disk image into the folder in finder and click the burn button. You should see the disk image as a file on the drive (e.g. you could, in principle, add more files).

 

[Schtibbie]

You want to instead copy the disk image as a *file* onto the DVD.

Yay! Thanks - that did it. It took about an hour to do the "Verifying" part - for a 4.7gig DVD. No matter. It got done and ended up encrypted.