The MTS file extension is associated with high-definition MPEG Transport Stream video (AVCHD) format. These videos are encoded in 1080i ("i" stands for interlaced), or 720p ("p" stands for progressive).
The MTS file extension is used by MadTracker, the composition tool that creates the shortest path between imagination and music. MTS files contain audio sample that can be used in MadTracker application.
The MTS file extension is associated with MEGA (Molecular Evolutionary Genetics Analysis), a program used for testing evolutionary hypotheses. MTS file saves a phylogenetic tree, which can require extensive amounts of computation based on genetic information.