Create a bootable DVD version of the OS X Lion installer Stop by the above article to learn how to make the bootable install DVD, and then come back here to learn how to use the DVD to Erase the Target Disk.. As to how I learn this: When I try to save the document by clicking the save icon or using Ctrl+S, the 'save as' window opens (this should not happen, the file should be saved directly).. T..