Hi:
Below is the link to the service manual for your g6.
http://h10032.www1.hp.com/ctg/Manual/c03094322.pdf
Chapter 3, page 28 provides the supported blue ray drive with the HP part number.
You can query your search for the part by the part number...Try eBay.
The part is no longer available from HP, so you will have to find a place that may have them for sale.
