[Q] DiXperia8 720p Video problem

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http://forum.xda-developers.com – Hello. I have a problem to play video in res 720p on my xperia x10 now im using DiXperia8 - Stock version, before install DX8 when i wos have android 2.3.3 videos play good (no lag) in oryginal video player and in "MX Video Player", after install DX8 standard app named "QuicPic" say that he cant open that video file. I try install "MX Video Player", "MoboPlayer" and "BSPlayer". "MoboPlayer" and "BSPlayer" dont work, "MX Video Player" work but there's no synch Video+Music. When i play movie or something else Video (HowTos)