PCDJ DEX software (version 3.7.5) is a versatile DJ mixing software that allows users to mix and customize audio and video files. Its key features include beat-grid-based automatic beat mixing, advanced BPM detection, and key detection and matching. The software also includes extensive audio effects, EQs, and filters, as well as video mixing capabilities with support for multiple video formats and resolutions. Additionally, PCDJ DEX offers a comprehensive library management system with playlist creation, smart folders, and iTunes integration.