The resolution (1280x720). It’s "HD" quality, offering a good balance between file size and clarity.

A compression standard that makes files much smaller than the older H.264 without losing quality.

This usually happens if the audio is in a format like AC3 or EAC3. Updating your player to the latest version usually fixes this.

A modern, sleek player that handles HEVC files perfectly on macOS. 2. Understanding the Technical Tags