K-Lite Codec Pack Full does what K-Lite Codec Pack Standard can, with more options.
Most user will never need to use K-Lite Codec Pack Full. It contains the same set of codecs that exist in K-Lite Codec Pack Standard, but also add the ability for users to encode their own videos.
K-Lite Codec Pack Full is best utilized by users who understand bitrates, frames per second, and resolution aspect ratios. Even though K-Lite Codec Pack Full is a great codec pack, it is not recommended for users who will not be creating and encoding their own videos.
The playback capability of K-Lite Codec Pack Full is like K-Lite Codec Pack Standard. The tests playing various file formats showed the same quality and function with the AVI, WMV, MKV, and MP4 videos. All played with no problems and K-Lite Codec Pack Full also contains subtitle support. K-Lite Codec Pack Full along with K-Lite Codec Pack Standard can re-time subtitles so if a user had issues with subtitle playback, it can be customized.
Using K-Lite Codec Pack Full as an encoder is the bulk of the purpose of the program. Since it layers more functions on top of K-Lite Codec Pack Standard, it is possible to view the exact specific audio and video codecs are being used, how they are utilized, and how they interact with the hardware they are running on. It is interesting information for the curious, but unnecessary for standard playback.
K-Lite Codec Pack Full is a great starting point for novice users who want to understand how media formats work and a good tool for working with different media types for customization.