No DVD audio in WM7, but WMP12 is OK


  1. Posts : 37
    Windows 7 Home Premium SP1 64bit
       #1

    No DVD audio in WM7, but WMP12 is OK


    I'm running Win 7/64 Home Premium with an nVidia GT-430 (301.42) connected via HDMI to a Denon 2310CI.

    I don't normally use Media Center to play DVDs, so I have no idea when this issue started, but when I try to play one, the video will play for a few seconds, but there is no audio output. Then I get the dreaded "Files that are necessary for playback are not found ..." error, which, of course, tells me next to nothing. I encountered this same problem with Vista (which is one of the reasons why I upgraded to Win 7/64).

    Thinking it might be a conflict with 3rd party codecs (since uninstalling ffdshow in Vista cured that for a while ... I think, I can't really remember now ...), I uninstalled ffdshow, LAV filters, Haali spliter and rebooted. Didn't help. Meanwhile, DVDs play fine in WMP12. Also DVR-MS and TS files will bitstream AC3/DTS fine when played in Media Center.

    Looks as if something is broken, but I don't know how to proceed. Does anyone have any ideas or some solid links that could help out? The problem isn't worth re-installing Windows, but I'd like to be able to fix it just the same. Thanks.
    Last edited by bruce73; 02 Aug 2012 at 06:43.
      My Computer


  2. Posts : 37
    Windows 7 Home Premium SP1 64bit
    Thread Starter
       #2

    So I installed the trial version of PowerDVD and it solved the problem. Go figure, lol.
      My Computer


  3. Posts : 37
    Windows 7 Home Premium SP1 64bit
    Thread Starter
       #3

    I spoke too soon. PDVD had no effect.

    But ... I discovered something. When I opened a media file (DVR-MS or TS) directly from Explorer, the file would play. If I opened it from WMC's library, it would choke and I'd get the video error. The only thing different was, if I opened from Explorer, there was no sound when WMC opened. I noticed that navigation sounds in WMC are PCM, and the problem seemed to be it couldn't switch from that to bitstreaming the DD/DTS track on the files. So I turned off sounds, and whaddya know -- problem solved!

    Can anyone help me understand if this is a Win 7 issue or maybe one with my video card?
      My Computer


 

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