В XP Codec Pack v.2.1.0 входит:
* AC3Filter 1.46
* AVI Splitter 1.0.0.7
* CDXA Reader 1.0.0.1
* CoreAAC (AAC DirectShow Decoder) 1.2.0
* CoreFlac Decoder 0.4
* FFDShow MPEG-4 Video Decoder 2004.10.12
* GPL MPEG-1/2 Decoder 0.1.2.0
* Matroska Splitter 1.0.2.9
** Media Player Classic 6.4.9.0 rev. 611
* OggSplitter/CoreVorbis 1.1.0.79
* RadLight APE Filter 1.0.0.4
* RadLight MPC Filter 1.0.0.4
* RadLight OFR Filter 1.0.0.4
* RealMedia Splitter 1.0.1.1
* RadLight TTA Filter 1.0.0.2
* The Codec Detective 2.0
* VSFilter (DirectVobSub) 2.37