How to make a backup copy (ISO image) of a CD or DVD using the MacOS dd command

Table of Contents1 - Step 1: Insert a CD or DVD2 - Step 2: Find the CD/DVD identifier3 - Step 3: Unmount the drive4 - Step 4: Copy the DVD with the dd command5 - Step 5: Eject your media

If you want to make a backup copy (an ISO image) of a CD or DVD on a MacOS system using the Unix dd command at the Mac Terminal command line, I’ll demonstrate the process in this tutorial.

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Step 1: Insert a CD or DVD

Assuming that you’re using an external CD/DVD drive, the first step is to connect your drive to your computer, and then insert a CD or DVD. If you insert a movie or music CD and an application automatically starts playing, quit that application.

Teleport: The Unix/Linux ‘cd’ command, improved

Table of Contents1 - The Teleport command2 - Teleport command help3 - For basic use, tp is just like cd4 - Basic teleporting5 - Listing your teleport history6 - Teleport by number7 - Bash completion with Teleport8 - Teleport aliases9 - Adding/creating a teleport alias10 - Using a teleport alias11 - Listing your teleport aliases12 - Removing an alias13 - Teleport command - summary14 - Teleport command - download

Summary: By keeping a history of the directories you've visited, the Teleport command is an improvement on the Unix/Linux cd command. By having a memory, Teleport lets you jump from one directory to any previously visited directory, easily.

January, 2015 Update: The Teleport command now supports Bash completion. For more details on this, see the Github file.

A collection of 75+ free Linux tutorials

Free Unix and Linux tutorials: Wow, this blog post makes me feel a little old. As I've been working on reorganizing the website lately, I found that I've written more than seventy-five Unix and Linux tutorials. To try to make them easier to find, I created this page to link most of them up.

So, to that end, here is a list of at least 75 free Unix and Linux tutorials I've written. I hope you enjoy them, and I hope they're helpful.

How to make Mac backups with burn folders

Mac backups and burn folders FAQ: How do I make Mac backups (CD/DVD backups) with Mac burn folders?

Wow, I've become a big fan of Mac OS X burn folders lately. Once I realized how much they simplify the process of making Mac backups I've been completely sold on them. Mac burn folders make the Mac backup process so easy I actually take the time to make them on a regular basis.

How to make Mac backups with burn folders (Part 4)

Mac CD/DVD backups - After the burn

When I came back from lunch I was very surprised that there was no "Success" dialog to show me that the Mac burn folder/backup process succeeded. However, I was returned to my original Mac burn folder, and there is a new disk icon named "My Data Files" on my desktop, as shown here:

How to make Mac backups with burn folders (Part 3)

Mac backups - Burning to CD or DVD

Now that I've told my Mac burn folder what files and folders I won't to burn to disk, the next step is to tell the burn folder to burn this data to my DVD. To do this I just click the Burn button on the Mac burn folder, and then my Mac prompts me to insert a disk, as shown in this figure:

New release of the Teleport command

Quick note: I just released Version 0.3 of my Teleport command. If you haven't heard of it before, the Teleport command is the Linux/Unix cd command, with a memory. Because it has a memory, you can do many cool things, such as "teleport" from one directory to another, list the history of directories you've visited before, jump to directories with partial names, etc. I think it's pretty cool, and I hope you'll check it out. It's free, and released under the GNU GPL.

How to convert a DRM-protected song to an MP3

I've never bought any DRM protected (digital rights management) music, so although it's a well-known fact among techies, I didn't know until recently that you can burn DRM songs to a standard CD. The implication here is that once you've burned the DRM-protected song to CD, you can then rip it back as an MP3 file, which is the part that blows me away. Not much protection there, other than "security through obscurity".

Linux cd command examples

Linux FAQ: Can you share some cd command examples?

The Linux cd command stands for "change directory". It is the primary command for moving between directories on a Unix/Linux filesystem.

Examples of the cd command

This first command moves you to the /usr directory. The /usr directory becomes your current working directory:

cd /usr

Similarly, this cd command moves you to the /tmp directory: