I'm looking for a blu-ray player with these specific features.

[LennyLen]

Mkv is like the high def equivalent of divx.

Not really. MKV is a container file format (similar to AVI, but with more advanced features), and does not actually have anything to do with the quality or size of the video. That is determined by the codec (such as divx, xvid, H.264, etc) used to encode the video component contained within the MKV file.

Before you buy the Blu-Ray player, check which video (and to a lesser extent audio) codecs it supports. High quality rips will nearly always be in H.264 format, but lower quality ones are usually divx, xvid or mp4 format. Not all players will decode all of the formats.