Tutorial: Create Bootable OS X Lion Backup Copy on DVD or USB Flash Drive

Bootable OS X Lion - OS X Lion there are not more than the first DVD box set, but only as a digital download on the Mac App Store. Who but preferably after the download Lion of the store still be installed via a bootable DVD or USB stick or just want to create a backup copy of Lion, which is lower with the tutorial certainly be satisfied:
Create Bootable OS X Lion DVD :Mac OS X Lion from the App