DMA turned off for MyDVD

Posted on 2006-04-13
Last Modified: 2007-12-19
I recently installed Sonics MyDVD and right when I started up the program I received a message that said the program detected that DMA was turned off and in order for the proper operation of the program, it should be turned on. My first question is do you think that by ignoring this warning and not turning it on that myDVD will at least, adequately function? I also tried to do something about the problem by running a small program recommended to me from this website : It basically mentioned that by doing a couple of registry entries or by running this small program that DMA could be restored. Well I ran the program and then checked in device manager and DMA was then turned on for my DVD RW, but after I did it I noticed my system booted up slower so I used System Restore to revert back. So I'm back to square one!
Question by:janlafata
    LVL 24

    Expert Comment

    The problem would be that in PIO mode the transfer speed might not be enough.
    For reference these are the maximum speeds for the different transfer modes....
    0 - 3.3 MB/s
    1 - 5.2 MB/s
    2 - 8.3 MB/s
    3 - 11.1 MB/s
    4- 16.7 MB/s

    Whereas DMA modes maximum rates are....
    0 - 16.7 MB/s
    1 - 25.0 MB/s
    2 - 33.3 MB/s
    3 - 44.4 MB/s
    4 - 66.7 MB/s
    5 - 100.0 MB/s

    Enabling DMA should speed up your computer, not slow it down. If it slows it down you might have a problem with IDE drivers, a faulty drive, or a bad IDE cable. First thing I'd try in that case is a different cable to the DVD-RW.
    LVL 17

    Accepted Solution

    You want to make certain that your hard drive supports DMA.

    It's a safe assumption that any hard drive larger than 6GB will support DMA.
    LVL 17

    Expert Comment

    by:Horn E. Towed
    Any comments about why this answer was only a "B" grade?

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    IT, Stop Being Called Into Every Meeting

    Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

    cPanel is a Unix based web hosting control panel that provides a graphical interface and automation tools designed to simplify the process of hosting a web site. cPanel utilizes a 3 tier structure that provides functionality for administrators, rese…
    We have adopted the strategy to use Computers in Student Labs as the bulletin boards. The same target can be achieved by using a Login Notice feature in Group policy but it’s not as attractive as graphical wallpapers with message which grabs the att…
    how to add IIS SMTP to handle application/Scanner relays into office 365.
    Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

    761 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    14 Experts available now in Live!

    Get 1:1 Help Now