HQ S-Print . "S-Print" is a common term in unofficial circles often referring to a high-quality "Screen" or "Studio" print. While "HQ" implies high quality, this is typically an unofficial release and not a retail Blu-ray or official Digital UHD rip.
x264 (H.264), a widely compatible standard for high-definition video compression. HQ S-Print
AAC (Advanced Audio Coding), a standard lossy digital audio compression format often used for stereo or low-bitrate surround sound. HQ S-Print