| Source | Type | Duration | File size (approx.) | |--------|------|----------|---------------------| | (free samples) | Nature, timelapse | 30–60 sec | 300 MB – 1 GB | | YouTube (via 3rd-party downloader) | Demo reels | 1–2 min | 500 MB – 3 GB | | Sony / LG / Samsung demo site | Official demos | 1–2 min | 800 MB – 4 GB | | Pexels Videos | Stock footage | 5–20 sec | 200–600 MB |

Finding high-quality (7680x4320) is essential for testing high-end displays or editing hardware .