Windows 7: Win7 doesn't show MKV thumbnails correct

I'm using K-Lite Mega Codec 5.4(the latest, supports Windows 7)
couldn't see MKV thumbnails with this..then I used Codec Tweaker for Windows 7 and now i see thumbnails, but some (and most of) like this: anyway to correct this?

I would recommend unloading K-Lite and going with Shark007's Windows 7 codec package. Home: Shark007.net - Windows 7 Codecs - WMP12 Codecs From his site:

Version 2.1.0 is here at MajorGeeks:
|MG| Win7codecs 2.1.0 Final Download

They work fine for me.

What Codec Tweaker did you use?

Sharks codecs comes with its own "settings app" for x86 and x64 which is essentially a "tweak tool" but more comprehensive and intuitive. You need both if you have an x64 system. Allows you specify which codecs and splitters will be used for which file types, among other things. Very good codecs and tools.

Tip: If you are going to use them, go into the properties of the settings app's .exe, compatibility tab, and set it to always "run as administrator."

Does Sharks codecs have any that Kazaa Mega Codec pack doesn't? Can you have both Sharks and Kazaa codecs installed to cover everything, or does one interfere with the other?

I'd stick with K-Lite basic. Shark's codecs install more stuff.

I don't think that K-Lite Basic will get the OP what he asked for - thumbnails for MKV.

Has your experience shown something different?

I was just about to check. In K-Lite Basic, load Haali Media Splitter and set the thumbnail option to yes, and the offset time to 8000 milliseconds. Reboot.

all that for a thumbnail???? Go with Sharks .... You'll be glad you did...

Shark uses the same method for a second quicker. K-Lite Basic is only 4.3MB anyway.