Why it doesn't play this .mkv file

Could you please tell me why it doesn't play my HTS5581/12 this mkv file
http://www.upload.ee/thumb/1945301/why.JPG

maybe you can cross check that of the codec table? see if your mkv file codec is supported or not?

http://www.supportforum.philips.com/...ht=codec+table

got it working