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Activity Forums DVD Authoring Symmetrical grid like black dots on screen.

  • Symmetrical grid like black dots on screen.

    Posted by Roger Yates on November 19, 2012 at 4:23 pm

    Hi.

    I have just received a sample dvd back from my supplier and when I play the dvd back on my Samsung LED TV, I get symmetrical black dots on the screen almost forming a grid?

    I used Adobe Encore to create the dvd and I sent them an ISO/DDP Image on a disc to make a glass master.

    Could anyone tell me why this would happen.

    Thanks in advance.

    PS, it does not occur when I play back on my MAC

    Roger Yates replied 13 years, 9 months ago 2 Members · 2 Replies
  • 2 Replies
  • Eric Pautsch

    November 19, 2012 at 6:40 pm

    Have you tried another player and monitor to rule out issues with those?

  • Roger Yates

    November 20, 2012 at 9:08 am

    Yeah, I’ve played it on a plasma (not nearly as noticeable), an LCD monitor (could not notice it at all), a HD projector (very, very slight) and a LED 55″ screen. It was most noticeable on the LED 55″ screen.

    I was pondering over it all last night and I have a theory that it could have to do with aspect ratio and that when outputting the DVD from Encore, the compression is putting the pixels there to make up for a lack of pixels as it upscales to fit the aspect ratio.

    My original video file was shot in 1080p/25fps and it was output as a m2v file into Encore and then I created an ISO/ DDP Image (DVD – mpeg 2 PAL) which went to the replication house.

    I must also say that this is my first project I have sent out for a DVD to be created as most of the work I do is web based, so if anyone can suggest a better workflow/ codecs etc to use, then please let me know.

    Thanks

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