Xenorate uses directshow for video playback. This means, we use your installed codecs for playing media content.
Basically this is good, but in some cases its annoying if you are missing some codecs.
By the way, Xenorate shows you which video & or audio codecs are missing ;-)

Thats the reason we came out with our own free codec pack which includes all required codecs to play almost every media format out there.
It also enforces that only xenorate can use this codecs, because we do not want to disturb any other installed directshow applications.
Core filters:
Contains tons of video & audio codecs out-of-the-box:
H.264/AVC1, XvID, DivX, MPEG-4, Sorenson, Flash Video, Theora, ...
MPEG Layer 1-3, AC3, DTS, AAC, FLAC, True Audio, Vorbis, AMR, WMA, Real Audio, ...
Source filter for the following formats:
Including support for dynamic stream switching.
Supports the following subtitle formats:
IDX, SMI, SUB, SRT, PSB, SSA, ASS, USF
Used for loading internal & external subtitles.
DVD/MPEG-2 filters:
Free mpeg-2 video decoder for playing dvds.
Addon filters:
Source filter for reading realmedia files.
Supports the following audio formats:
Source filter for reading game video formats:
Filter for reading Video & Super Video CDs.
A better MPEG replacement filter for the default Quartz MPEG Splitter.
Source filter for FLV (Youtube/Flash video) files.