: It compresses data nearly 50% more effectively than H.264.
: Standing for High Efficiency Video Coding (also known as H.265). This is a modern compression standard that allows for high-quality video at much lower bitrates compared to the older AVC (H.264) standard.
: This indicates that the original file was updated. "Patched" versions usually fix synchronization issues, missing subtitles, or glitches found in the initial "V1" release. Technical Benefits of HEVC (H.265)