Amazon.com: New Internal DVD CD Burner Optical Drive for HP ProBook 4340s 6475b 4540s Pavilion G6 G7 DV6 DV7 DV5 DV4 DV7-6000 G6Z Laptop, Super Multi 8X DVD+-R RW RAM 24X CD-RW
HP Z Workstation series - Installing optical disk drives | HP® Customer Support
Amazon.com: New Internal DVD CD Burner Optical Drive for HP ProBook 4340s 6475b 4540s Pavilion G6 G7 DV6 DV7 DV5 DV4 DV7-6000 G6Z Laptop, Super Multi 8X DVD+-R RW RAM 24X CD-RW