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Dropped frames/stutter in PowerDVD with MKV files only

Home Theater Computers - www.avsforum.com
Hi

Firstly, bluray disks and iso bluray images play perfectly in my version of PowerDVD 15 at 23hz refresh rate. The MKV files (usually bluray x264) play perfectly on my Popcorn media player. However, there is an occasional skip or stutter when I play them with PowerDVD. This might only happen every twenty or thirty seconds.

What I've tried so far (in the past few years anyway)

Software

PowerDVD 14, 15 and trial versions of 16 and 17.

In my own PC, which is a modest Core 2 Duo 2.6Ghz with 4GB of RAM, I've tried two ATI graphics cards (most recent was a HD6570) and I've just tried a nvidia Gforce 750 ti oc 2GB card. With these cards I have tried:

Multiple uninstall/re-installs of PiwerDVD

Multiple reformats with the absolute minimum software installed for playback

Multiple graphics drivers

Hardware acc. on and off with TrueTheater enabled/disabled

24hz and 23hz (23hz better than 24hz for stutters)

RGB and YcbCr

8bit, 10bit and 12bit

PowerDVD decoding the audio and my receiver decoding the audio

Reclock additional software from Slysoft.

I have also tried all the above in an I5 PC with 8GB of RAM and also in an I7 laptop with 8GB of RAM all with the exact same results.

These stutters are very subtle but completely ruin the movie experience for me. Having tried all the above, the only conclusion I can come to is that PowerDVD is flawed when it comes to playing MKV files. I really hope I'm wrong about that and that someone here can suggest a solution as can surely be seen from all my attempts over the years, I'm desperate to get this working.


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