Ab image to DVD is not a good idea anyhow. You should use an external disk. If imaging should make any good sense, you have to do it frequently - and then DVDs are a mess.
System Manufacturer/Model Number HP, Dell, Gateway, Toshiba - 4 laptops and 2 desktops OS Vista, Windows7, Mint Mate, Zorin, Windows 8 CPU from 1.6GHz Duo to i7 Monitor(s) Displays 2x HP w2207
Keyboard with trackball - no mices Mouse Trackball mice Hard Drives 5x HDD, 7x SSD, 12x Externals Internet Speed DSL 6000
System Manufacturer/Model Number HP, Dell, Gateway, Toshiba - 4 laptops and 2 desktops OS Vista, Windows7, Mint Mate, Zorin, Windows 8 CPU from 1.6GHz Duo to i7 Monitor(s) Displays 2x HP w2207
Keyboard with trackball - no mices Mouse Trackball mice Hard Drives 5x HDD, 7x SSD, 12x Externals Internet Speed DSL 6000