My laptop is acer aspire3680 it have an philips cd-rw/dvd-rom scb5265,recently it failed to detect dvd roms ,no problem with cd  pls help me to solve this issue;uses windows xp

it looks like sata

Aspire T690 Specifications

Part Number: AspireT690 Aspire T690
Storage CD-ROM, CD-RW, DVD-ROM, DVD/CD-RW Combo, DVD Dual, or DVD Supermulti (varies by model)
Up to 400GB Hard Disk Drive SATA (varies by model)
9 in 1 Card Reader (selected models)

-it is possible that you the optical drive is loose. That can be resolved by re-seating the drive itself.
-first, shut the laptop down, unplug the AC adapter if it is plugged-in then remove thte battery pack of the laptop.
-you need some small philips head screw driver to unscrew just one screw that holds the optical drive located at the bottom of the laptop. You may need to consult the user's manual of the laptop.

check the power connector that is attached to the drive, if the tray moves in-out after power on that means power is ok, in this case you need to try cleaning the lens

I'm guessing you may have locked the DVD region. If you right-click on the device in Device Manager and click the Region tab, does it say 0 changes available? Acer won't fix this, and claim you have to replace the drive. Can't find a firmware flash for this drive online, will post back here if successful!

plz check in the bios the cd rom is enable, then check the datacables try with a new data cable

I have also the problem of yours but i have the solution and i do it with my pc now it read DVD/CD

if you have CD RAM and DVD ROM then change it to CD/DVD ram because in case of CD RAM and DVD ROM it may read CD but not DVD but sometimes it can read DVD also but when we copy data to computer it may freeze or give us error so i give you one suggest to buy a new CD/DVD RAM

If your dvd rom isn't recognizing any dvds or maybe curtain dvds you need to download both a DVD decoder, such as Roxio, WinDVD or Cyberlink Power DVD, as well as a complete set of codecs, the best codec pack you can find at this link, make sure to download the full version. http://www.free-codecs.com/k_lite_Codec_Pack_download.htm

Good Luck =)

your DVD ROM's lens has became weak.
and it cannot be repaired.
But if you manage to open the DVD ROM clean the dust in it & it will start working agaain but be careful remember that no power should be attached to ROM.
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thankyou

Assuming you have tried different makes of cd or dvd disks, it's a classic drive failure problem where the laser can no longer burn or read dvd's, but may still be able to read cd's only. You will have to replace the drive, they are quite inexpensive, and very easy to fit.