DVD read slow and jerky.

Recently, I was copying a DVD on my hard drive of DVD read/write drive using the. Apparently there are a lot of mistakes on the DVD disc so the unfinished copy. Subsequently, I found that DVDs who played correctly on other computers would not properly play on it (XP SP3 on a Dell Inspiron 1525), but rather they play showing jerky images and not smoothly as usual.

I tried to uninstall the unit DVD and re-install it - which has corrected this problem on other computers, I have - nothing works. I also tried the "fix" of registry by removing the filters above and below - no help there. See information system using Nero, it shows the unit DVD controller to be the "Primary IDE" with DMA off. I checked and found the "DMA if available" box to be listed under properties to "Primary IDE". There seems to be no way to activate DMA for the DVD otherwise.

I replaced the DVD material with another identical device, that I know works and it also plays videos wrong so I think that it's a software problem and not material. I would like suggestions.

Thank you.

Hi again Rob,

I found the solution!

I started to follow your suggestions in order and completed stage of scanning of files. I am lucky to have two computers running and while it was appeased with the tests, I kept searching online and found this site:http://club.myce.com/f61/troubleshooting-enabling-checking-dma-windows-vista-xp-2000-me-9x-101616/. There was a big discussion on the problems of DMA and the author had a simple solution to try. It seems that Windows will automatically disable DMA on an IDE channel after several errors occur with the device it controls. There is no 'normal' way to reactivate by simply selecting "DMA if available" option in the advanced properties of the controller menu. I made sure the primary IDE is the DVD controller - and not the hard drive controller - then uninstalled. I did a reboot and that Windows apparently forced to reinstall the primary IDE controller, after that he found the DVD device on the system... At least that's my understanding of how it worked - I'm not much of a Curmudgeon. In any case, it worked like a champ. I checked the disc using Nero and it's back to the speed (3.2 x at the beginning and continues to increase as it tests the reader), videos play very well also.

Maybe it will help others with the same problem.

Thanks again for your help. I will keep your suggestions for the future.

Tom

Tags: Windows

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