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<blockquote data-quote="tourettes" data-source="post: 532395" data-attributes="member: 10858">Some of those issues could be related to GPU drivers as well, but not all as I know many team members (and users as well) who are able to use ATI + DVD + Windows 7 / Vista + DXVA with working DVD menus.Fact is that without building own DVD navigator and MPEG2 decoder we are always facing the possibility with no-working DVD menus as the whole DS chain can affect the result. Currenty Windows Vista + MS MPEG2 codec + MS Navigator has been working with every tested DVD. With Windows XP + Cyberlink navigator + Cyberlink MPEG2 decoder I had few disks that didn't work properly, but who knows&nbsp; coud have even been ATI or Nvidia driver issue (cannot remember which card I had that time in HTPC).Oh, sorry. Didn't know that ATI has updated the support a bit. Previously only L4.1 was supported. The bad thing is that 5 ref frames limit is many times too less when many &quot;scene&quot; releases people are watching are having higher reference frame amount, good thing is that MPC-HC decoder knows the ATI limit and can fall back into software decoding mode (where as Cyberlink will just have corrupted decoding result). And another bad thing is that the more reference frames you have the more you would be needing the HW acceleration to take the decoding load.</blockquote>

[QUOTE="tourettes, post: 532395, member: 10858"] Some of those issues could be related to GPU drivers as well, but not all as I know many team members (and users as well) who are able to use ATI + DVD + Windows 7 / Vista + DXVA with working DVD menus. Fact is that without building own DVD navigator and MPEG2 decoder we are always facing the possibility with no-working DVD menus as the whole DS chain can affect the result. Currenty Windows Vista + MS MPEG2 codec + MS Navigator has been working with every tested DVD. With Windows XP + Cyberlink navigator + Cyberlink MPEG2 decoder I had few disks that didn't work properly, but who knows coud have even been ATI or Nvidia driver issue (cannot remember which card I had that time in HTPC). Oh, sorry. Didn't know that ATI has updated the support a bit. Previously only L4.1 was supported. The bad thing is that 5 ref frames limit is many times too less when many "scene" releases people are watching are having higher reference frame amount, good thing is that MPC-HC decoder knows the ATI limit and can fall back into software decoding mode (where as Cyberlink will just have corrupted decoding result). And another bad thing is that the more reference frames you have the more you would be needing the HW acceleration to take the decoding load. [/QUOTE]

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