| Format | Video Quality | Audio Quality | Source | | :--- | :--- | :--- | :--- | | | Poor (Varies, often off-angle) | Poor (Audible audience noise) | Handheld camera in a theater | | TS | Low to Fair (Steady tripod) | Good (Direct line feed) | Tripod camera + audio line-out | | HDTS | Fair to Good (720p/1080p) | Good to Very Good (Direct feed) | HD camera + direct audio feed | | WEB-DL | Excellent (Direct digital) | Excellent (Original stream) | Ripped from streaming services (Netflix, etc.) | | Blu-ray | Perfect (Untouched source) | Perfect (Lossless audio) | Direct from the official disc |
For instance, a sentence in a paper might read: "The study evaluated the subjective video quality of 4K (3840x2160 pixels) and 1080p (1920x1080 pixels) resolutions."
An HDTS is not a clean, direct digital copy. It's still a camera pointed at a screen in a theater. The "HD" label means the camera recorded in high definition, but the source material (the cinema projector) is still being filmed through air, light, and sometimes imperfect conditions.
Let's break that down:
