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Rip a CD/DVD to ISO format.

Terminal - Rip a CD/DVD to ISO format.
dd if=/dev/cdrom of=~/cdrom_image.iso
2012-07-10 06:03:25
User: o0110o
Functions: dd
6
Rip a CD/DVD to ISO format.

An easy method to generate ISOs from CD/DVD media.

Alternatives

There are 5 alternatives - vote for the best!

Terminal - Alternatives
readom dev=/dev/scd0 f=/path/to/image.iso
2009-03-08 13:21:23
User: atoponce
57

Many like to use 'dd' for creating CD/DVD iso images. This is bad. Very bad. The reason this is, is 'dd' doesn't have any built-in error checking. So, you don't know if you got all the bits or not. As such, it is not the right tool for the job. Instead, 'reaom' (read optical media) from the wodim package is what you should be using. It has built-in error checking. Similarly, if you want to burn your newly creating ISO, stay away from 'dd', and use:

wodim -v -eject /path/to/image.iso
dd if=/dev/cdrom of=whatever.iso
2009-09-05 09:19:41
User: 0disse0
Functions: dd
Tags: backup dd iso dvd
8

A dear friend of mine asked me how do I copy a DVD to your hard drive? If you want to make a copy of the ISO image that was burned to a CD or DVD, insert that medium into your CD/DVD drive and (assuming /dev/cdrom is associated with your computer?s CD drive) type the following command

cp /dev/cdrom file.iso
dd if=/dev/cdrom of=~/cdimage.iso
cat /dev/cdrom > ~/img.iso

Know a better way?

If you can do better, submit your command here.

What others think

But... You don't have to remember the dd syntax.

Under Unix, everything's a file, so these will work too:

cp /dev/cdrom ~/cdrom_image.iso cat /dev/cdrom > ~/cdrom_image.iso
Comment by flatcap 219 weeks and 4 days ago

@flatcap: That's good to know, thanks. I'm an Ubuntu user by default, lol.

Comment by o0110o 219 weeks and 4 days ago

Wow, thats very good to know, flatcap. But does that mean you can do the opposite:

cp ~/cdrom_image.iso > /dev/cdrom

To write an ISO to a disk? I don't think it does, but why wouldn't that work then?

Comment by raikia 219 weeks and 4 days ago

@o0110o: I should have been clearer.

My two commands will work under all Unix-like OSs (Ubuntu included).

Comment by flatcap 219 weeks and 4 days ago

@raikia: Hmm... Now you've got me. I don't know. I think not.

cdroms are awkward things.

It'll certainly work with most normal block devices.

I sometime use that method for disks, e.g.

cp /dev/sda1 2012_07_10_sda1.img cat 2012_07_10_sda1.img > /dev/sda1
Comment by flatcap 219 weeks and 4 days ago

The only problem here is that there is no error checking or correction. The cdrecord package includes a command line tool called readcd that rips CDs to iso files quite nicely:

readcd dev=<cdrom> f=foo.iso
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Comment by jiajiagg 3 weeks and 2 days ago

Your point of view

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