sudo dd if=/dev/cdrom of=disc_image.iso bs=2048 Warning: dd is powerful. Make sure if= (input file) is your disc drive, not your hard drive. Not all ISOs are equal. A standard data ISO won't start your computer. To create a bootable OS installer, you need to preserve the "El Torito" boot catalog.
Linux users have genisoimage (or mkisofs ). iso file create
In the golden age of physical media, the ISO file was the digital savior. It allowed us to take the exact 1s and 0s of a CD, DVD, or Blu-ray and store them as a single file on a hard drive. sudo dd if=/dev/cdrom of=disc_image
hdiutil makehybrid -iso -joliet -o /path/to/output.iso /path/to/source/folder This command creates a hybrid ISO with Joliet extensions (for long filenames). A standard data ISO won't start your computer
Do you prefer using command-line tools or GUI software for creating your ISOs? Let me know in the comments below!