Well, i'm trying to figure out which is the best codec pack for 2008 R2. I tried at first K-lite, but some effects in subtitles and other rendering options were missing; worst of all, all rmvb i tried to run became blocky.

Since them i had installed shark007, but when i tried to enable those DXVA options, all videos got corrupted (worst of all, the layout of their site makes feel very insecure about malware embedded). If I enable dxva into the player (VLC, for instance) it runs finem but makes me think if would get better enabling in the codecs. I tried to run some heavy test videos (crowd run, milkgirls) and got some stuttering. I have just a 955 C3, 4GB 1333 with little tighted timings and a 5670 512MB GDDR5 overclocked at catalyst limit, a modest machine, but i want to squeeze every grain of performance that i can (we're all here at 2k8r2 for the same, i suppose).

So, need to ask: what are you guys using to watch movies?

VLC.

There is a thread about that subject over at forum.thewindowsclub.com
there it was said that you should not install any codecs.
You shouldnt need any, because fx. VLC can run almost any video without codecs,
and also that there is a security-problem with codecs.

I mostly use VLC with its built-in codecs, and I also have K-Lite Mega Codec Pack along with K-Lite x64,


VLC

K-Lite Mega Codec Pack

K-Lite Codec Pack 64-bit

Media Player Classic HC


K-Lite is for playes like WMP that don't have many built-in codecs needed to play back certain media formats. I always use K-Lite default settings and it works fine.

VLC and XBMC it is for me.
Mediacenter for movies and series, VLC for anything else.