DVD drive some time works, some time does not

The DVD works by just pushing it in far enough till you get resistance, then the drive pulls the DVD in by itself. If after it pulls the DVD in, it just ejects it, The DVD drive thinks you are using an incompatible disk.

You can also try resetting the SMC.
This is how to reset SMC on most modern Mac laptops:

Shutdown your MacBook Air / MacBook Pro
Connect the power adapter to your Mac
On the MacBook/Pro's keyboard, hold down the Shift+Control+Option keys and the Power button at the same time
Release all keys and the power button at the same time
Boot your Mac as usual

Here's the key sequence to hold down:

Reset the SMC of a MacBook Air or Retina MacBook Pro

Do keep in mind that by resetting the SMC you will lose power specific settings, like the time it takes to sleep a Mac and other customizations to power settings. No big deal, but if you have made many changes to your hardware behavior you will want to adjust stuff like sleep behavior again.
Reset SMC of an iMac, Mac Pro, Mac Mini

Resetting SMC is different for non-portable Macs:

Shut down your Mac
Disconnect the power cord
Press and hold the Mac's power button for 5 seconds
Release the button
Reattach the power cables and boot the Mac as usual

Reset the SMC of a MacBook or MacBook Pro's with detachable batteries

sad mac reset the smc Older MacBook laptops with a removable battery can reset SMC with the following approach:

Shutdown the MacBook/Pro and remove the battery
Disconnect the power adapter, hold the Power Key for 10 seconds
Release the power key and reconnect your battery and power adapter
Turn your Mac on
Let boot as usual

Hopefully that will clear up your problems, if not it might be worth a visit to the Apple Store or a certified repair center.

Happy New Year,
Kerry

HI there,

Here's a link to Microsoft's automated tool for restoring unrecognized DVD drives. It doesn't work every time, but alot of the time it does.

http://support.microsoft.com/gp/cd_dvd_drive_problems

Best WIshes,

Marcus

Hi.
Your dvd drive is gone mate.
Replace it.

Hi. Have you tried reflashing your device (Assuming you have done before with the instructions from the xda-developers) with another ROM from xda-developers? If it doesn't work, you can try to reflash your device with an official ROM from the HTC website. Hope this helps.

it means that your dvd lens is already damage. change your dvd player.

When this happens the drive lock is faulty, or there is a control problem.

Unplug laptop power cord and remove battery for ten minutes.

If the DVD still does not lock when there is no power, and when you connect everything back, then DVD latch has a fault, probably a mechanical problem.

If laptop is new get it replaced, or get the DVD unit replaced. Contact the retailer for service and replacement conditions.

Regards

Well, for one thing, your system is faster then mine. AMD Athlon X2 4000+ 2.10 GHz, 2GB, BIOSTAR A770 A2+ 160GB SATA. Anyway, what sata port did you install these DVD-Burners to. I know it shouldn't matter, but humor me for a minute. I have mine on the last two normally. Seems to work fine. Try it and see.

Let me know

comier957

hi, sometimes manually cleaning the lens lcarefully with an earbud wiil help.. let me know..

you might have to update your dvd driver. Go to my computer and then properties,then disk manager. Look for the DVD driver and then update it...You might also update your windows..Hope this helps...

Mine did that too but for whatever reason when I did a system restore back to a time when it didn't do that... it worked.