Before jumping the gun on buying a drive, did you actually pull the drive out of the laptop to verify the part number on the drive? You really need to do this to make sure something else is not up with Windows detecting it as just a DVD ROM drive.
Please pull the DVD drive from your laptop and verify the part number on the label before proceeding. THIS is a direct link to your Maintenance and Service guide. Follow page 52 to remove the drive.
To answer your question... You can't just buy any Sata drive and install it... it has to be a drive that's compatible with your laptop model. If you buy a drive that's not compatible, the computer/motherboard will not recognize the drive. Beyond that, the aesthetics of your laptop may be compromised because not all drives will have the same type faceplate and so it might not match the laptop. Your door appears to have a curved faceplate... lots of drives have flat faceplates. Something to consider if you care about that kind of thing.
The HP model that's compatible is #AK869AA. It's quite expensive if you buy it directly from HP.
HERE'S a link to the drive. On the page, if you click on the link "
View all compatible products" you'll see your HP EliteBook 6930P in the listing.
$169 is very expensive for a DVD writer. If you shop on ebay, there's a seller with 100% feedback selling the very same
DRIVE for $89.99 + $17.58 shipping...
from CANADA. It would probably take a while for the drive to get to you, but this seller seems to be pretty good and if it were me, I wouldn't hesitate to buy from him. There is also another seller selling the drive for $88.51 with free shipping. However this seller has terrible feedback and I wouldn't recommend you purchase from him... but that's up to you. Here's what his feedback looks like for this year as reported by ebaynegs (Firefox extension)...
That's over a hundred negative feedbacks in less than a year! Be very wary of these kinds of sellers!
This is the
PAGE for all the AK869AA currently on ebay.
There may be other drives that will work in your laptop but it'll take some investigation into which ones they are. An external USB DVD Writer is also an option to consider.
HERE'S some on Amazon. I personally use an external Samsung DVD Writer (an older model), with 3 of the 4 laptops in my signature... it works very well and very fast! Of course, not as well or fast as an internal drive, but 2 of my laptops can't even take an internal drive!
makai