Mac disk images: any real difference between 'master' and 'compressed'?

Posted by Rabarberski on Super User See other posts from Super User or by Rabarberski
Published on 2009-10-02T20:28:53Z Indexed on 2010/03/11 4:41 UTC
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mac

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osx

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iso-image

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dmg-image

When creating a disk image (.cdr or .dmg) from a physical CD or DVD on Mac (using Disk Utility > New Image) one can choose between 'CD\DVD Master‘ and 'compressed'.

Apart from the obvious fact that a compressed image will be smaller, are there other differences? Will a compressed image for example not expand to an exact copy of the CD or DVD?

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