best media player capable of high level h.264 video?

[hiohaa]

hi.
i have a vu+ duo box which doubles up as an mkv player. unfortunately it struggles with high level 4.1+ bluray rips, and either the audio or video will lag sometimes.

can anyone recommended a dedicated media player, like a 'popcorn box' or whatever - and confirm that they would be capable of playing any high bitrate you can throw at it, 15-20+ mbps for eg.

thanks.

[Chef Goldblum]

I've played files in that range with no problem on WD box. I don't think I've ever tried to play one with higher bitrate than that, or even seen one. MKV over 20mbps seems excessive even for bluray.