Extension .MKV in Video file

Whats is MKV extension at multimedia file ?.
MKV is extension for multimedia file.

Good with codec x264/avc and the best quality pic from xvid/divx with same bit rate.
resolution and frame/sec is same. so can compress file if needed. specialy with frame and motion picture too fast. and if u see at bigger monitor u can see better performance. if u compare with same file and different comprestion example with divx/xvid u can see thats different.

weakness for this compression is

1) you need a bigger resource hardware, because thats use all prossessor and memory

2) Because is Open Source, so u must be waitting if u have a bug.

Thats enough for this mount informations.

for detail information about .MKV u can visit http://en.wikipedia.org/wiki/Matroska