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DVD-drive won't recognize any DVD

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DVD-drive won't recognize any DVD

redandblueglasses
I have a Matshita UJDA770 DVD/CD drive that won't recognize a prerecorded DVD, or any DVD for that matter. Will only recognize audio or data CD's. Any thoughts? It says the drivers are correct and working appropriately.
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    NickNielsen Moderator

    DVD lasers operate at a light wavelength of 650nm; CD lasers at 780 nm. A DVD drive has one of each laser inside so it can recognize both types of disc. http://articles.techrepublic.com.com/5100-10878_11-1047035.html

    The 650nm laser in your drive has failed. Replace the drive.

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    seanferd

    I find that the chosen username is slightly ironic compared with the subject. It would be more within-bounds if it were bluray vs. CD.

    Excuse my off-topic meanderings...

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    santeewelding

    My dear Seanferd, they are not only not excused, they are accepted and encouraged!

    How are you doing in your lab with the frozen chickens? Have you settled on the embedded system?

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    NickNielsen Moderator

    What's 300 nanometers among friends?

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    HAL 9000 Moderator

    Intensity and is no longer able to read DVD Media. The unit will work with CD Media as that has a different LED to generate the Laser beams that are used to read the Disc's.

    This happens predominately because people leave Disc's in the drive when they are not required and the LED that works with that type of Disc is left running all of the time that the Disc is in the drive. After it reaches a set number of hours it is no longer able to generate enough light to read that type of Disc.

    You should not leave Disc's in these drives and only place a Disc in the drive when it is required. If you need to have a specific Disc in any Optical Drive you should download some software to create a Virtual Drive and load the contents onto the Computers HDD. This will allow you to not need to use any Disc in the Optical Drive and where the Disc is required to run a program it will give you significantly faster access tot he contents of the Optical Disc by running it as a Virtual Drive from the HDD. Depending on who you look at the times to access Data on a Virtual Drive can be up to 100 times faster than what it takes from an Optical Disc. So if a Optical Disc is required to run a game the game will be much smother and there will be less lags while the computer scans the Optical Drive for the required data.

    Col

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    Ron K.

    What virtual DVD software do you use?

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    HAL 9000 Moderator

    I was given a copy of DVD neXt Copy Virtual Drive which I like.

    Apparently that company gave away copies of that software to anyone who bought DVD neXt Copy which I use to backup my wifes DVD Collection. I looked at the D Base that I have of her titles and it's now at the 1875 mark and growing.

    Col

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    Deadly Ernest

    considered the concept that your system may not have the validated codecs to be allowed past the DRM?

    Some recent upgrades to DVD reading software, have tightened up on this significantly, and a lot of stuff that used to play no longer works.

    The actual drive operation can be checked out by placing a home made data DVD in the system and see if the drive recognises this and reads, if so, the hardware is OK, but the software needs attention. If this fails, toss it and buy a new DVD R/W.

  • +
    0 Votes
    NickNielsen Moderator

    DVD lasers operate at a light wavelength of 650nm; CD lasers at 780 nm. A DVD drive has one of each laser inside so it can recognize both types of disc. http://articles.techrepublic.com.com/5100-10878_11-1047035.html

    The 650nm laser in your drive has failed. Replace the drive.

    +
    0 Votes
    seanferd

    I find that the chosen username is slightly ironic compared with the subject. It would be more within-bounds if it were bluray vs. CD.

    Excuse my off-topic meanderings...

    +
    0 Votes
    santeewelding

    My dear Seanferd, they are not only not excused, they are accepted and encouraged!

    How are you doing in your lab with the frozen chickens? Have you settled on the embedded system?

    +
    0 Votes
    NickNielsen Moderator

    What's 300 nanometers among friends?

    +
    0 Votes
    HAL 9000 Moderator

    Intensity and is no longer able to read DVD Media. The unit will work with CD Media as that has a different LED to generate the Laser beams that are used to read the Disc's.

    This happens predominately because people leave Disc's in the drive when they are not required and the LED that works with that type of Disc is left running all of the time that the Disc is in the drive. After it reaches a set number of hours it is no longer able to generate enough light to read that type of Disc.

    You should not leave Disc's in these drives and only place a Disc in the drive when it is required. If you need to have a specific Disc in any Optical Drive you should download some software to create a Virtual Drive and load the contents onto the Computers HDD. This will allow you to not need to use any Disc in the Optical Drive and where the Disc is required to run a program it will give you significantly faster access tot he contents of the Optical Disc by running it as a Virtual Drive from the HDD. Depending on who you look at the times to access Data on a Virtual Drive can be up to 100 times faster than what it takes from an Optical Disc. So if a Optical Disc is required to run a game the game will be much smother and there will be less lags while the computer scans the Optical Drive for the required data.

    Col

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    0 Votes
    Ron K.

    What virtual DVD software do you use?

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    0 Votes
    HAL 9000 Moderator

    I was given a copy of DVD neXt Copy Virtual Drive which I like.

    Apparently that company gave away copies of that software to anyone who bought DVD neXt Copy which I use to backup my wifes DVD Collection. I looked at the D Base that I have of her titles and it's now at the 1875 mark and growing.

    Col

    +
    0 Votes
    Deadly Ernest

    considered the concept that your system may not have the validated codecs to be allowed past the DRM?

    Some recent upgrades to DVD reading software, have tightened up on this significantly, and a lot of stuff that used to play no longer works.

    The actual drive operation can be checked out by placing a home made data DVD in the system and see if the drive recognises this and reads, if so, the hardware is OK, but the software needs attention. If this fails, toss it and buy a new DVD R/W.