Create ISO from DVD on Mac

How to create ISO image from DVD?

1. Insert CD/DVD into computer and open Terminal.app

2. Type "mount" (without quotes) to list mounted drives

3. Type "unmount /dev/disk1" to unmount DVD from Mac OS X Finder

4. Type "dd if=/dev/disk1 of=/path/to/file.iso bs=2048" to copy content from DVD to file (this may take a while, depending on size of CD/DVD)

That's it. You copied content of DVD to your computer successfully.

How to mount ISO image?

hdid /path/to/file.iso