To use this tutorial an 8 GB or larger USB stick, a second Mac computer with a working SuperDrive or a Mac OS X Install disc DMG file will be needed. This might be needed if your Mac needs a reinstall or a “Repair Disk” procedure and it has problems reading the bundled Install disc. This article will allow you to learn the necessary steps for creating your own bootable Mac OS X Leopard (or Lion) image on a USB memory stick.