Do you prefer using command-line tools or GUI software for creating your ISOs? Let me know in the comments below!
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. iso file create
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). Do you prefer using command-line tools or GUI
Linux users have genisoimage (or mkisofs ). Make sure if= (input file) is your disc
Use ImgBurn (Mode: Read). Insert the disc, select the source drive, choose a destination for the .iso , and click the read button. It will rip the disc sector-by-sector.
Tools like (for USB) or AnyBurn allow you to specify a "Boot Image." When creating the ISO from a folder (like a Windows DVD extraction), you must tell the software: "Sector 7 contains the boot loader."