MATROSKA
MKV (Matroska) sample files are video files that use the MKV file format. They are typically used for storing high-definition video and audio content and are often used for storing movies, TV shows, and other types of multimedia content. MKV files are known for their ability to store multiple audio and subtitle tracks, as well as other metadata, within the file itself. This makes them particularly useful for users who may want to watch a movie or TV show in a different language or with different subtitle options. MKV files are also known for their high level of compression, which allows them to store large amounts of data in a relatively small file size. This makes them ideal for downloading and streaming over the internet. Overall, MKV sample files are a popular choice for storing and sharing high-definition video and audio content due to their versatility and ability to store multiple tracks and metadata within the file.