A: VP9 (libvpx) gives ~40–50% better compression than H.264. A 1GB Libvpx file equals ~1.8GB H.264 file in perceived quality.

A: Libvpx containers often use Opus or Vorbis audio. If silent in some players, update VLC to v3.0.18+ or remux to MKV with MKVToolNix (copy streams without re-encoding). 8. Quick Troubleshooting Checklist | Problem | Likely Fix | |---------|-------------| | No video (black screen) | Update VLC / use MPV | | Choppy playback on laptop | Enable hardware decoding or lower resolution | | No sound | Switch audio track (VLC: Audio → Audio Track → Track 1 (Opus)) | | Subtitles don’t show | Download .srt from OpenSubtitles (S01E07) and drag into player |