If you’ve ever tried to play a video file with or DTS (Digital Theater Systems) audio on the standard version of MX Player, you’ve likely been greeted by silence. This is because the official app removed native support for these codecs years ago due to licensing fees.
Though newer versions of MX Player Pro exist, the 1.15.9 build is celebrated for its stability and "Lite" footprint. MX Player - 4PDA
The is a testament to the creativity of the Android modding community. It solves specific pain points—audio codec support and bloat—that the official versions struggled with.