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To be exact there are six models of Compaq C700 laptop.
to identify the model, turn you laptop upside down and read the details on the sticker.
Compaq C700 Main
Compaq C700 CTO
Compaq C700 EM
Compaq C700 ET
Compaq C700 LA
Compaq C700 CTO
Compaq C700 XX
1. Select your OS
2. Scroll down, drivers are displayed alphabetically
Hopefully this helps.
Thank you for posting..
Let me explain some things for you to understand what happened with the dvd drive.
A laptop (or desktop) dvd writter drive is actually build around 2 separate optical systems each specialised to deal with either a cd or a dvd type of disk.
A cd has normally around 650mb - 700mb.
A dvd has normally around 4,3gb - 4,7 gb.
But both disks have the sime size. So the larger capacity disk, the dvd has higher data density as related to the disk surface. Therefore because these disks are being read using laser diodes, each diode must be tuned to a specific frequency for each type of disk. A cd is read/written by a 860 nm diode (infrared) and a dvd is read written by a 630 nm diode (red). These are separate optic subcomponents (by the way, a blue ray disk and reader is called blue ray because of the diode that is used to read them, it's on 437nm and it's emitting blue light).
If your drive will read only cd's and fail to read a dvd then it means that the coresponding optic block for dvd reading has failed. The cd optic system will continue to function as it's not linked to the dvd part.
In this situations there is little to do to save your drive so you should consider the replacement or assistance in a service center for your problem. I'm sorry as we aren't able to fix this without having to dissasemble things and use some service equipment.
It's likely a laser alignment problem inwhich you will need to replace the hardware. However, I had a similar problem once with a notebook and found out that a tiny bread crumb was near the spindal making the cd in the drive off balance. Check liberally for any debris. Good luck!