| Parameter | Effect | Typical for high-quality rip | |-----------|--------|------------------------------| | -crf (Constant Rate Factor) | Quality; lower = better (0–51). 18–22 visually lossless. | 18–20 for 1080p, 20–22 for 4K | | -preset | Speed vs. compression: ultrafast to placebo . | slow , slower , veryslow | | -profile | Compatibility: main , main10 , main444 . | main10 (10-bit depth) | | --no-sao | Disables sample adaptive offset (sharpness trade-off). | Sometimes used for grain retention | | --aq-mode | Adaptive quantization (preserve detail in flat areas). | 2 or 3 | | --hdr10-opt | For HDR10 metadata optimization. | Enabled for HDR sources |
Some users claim x265rips are "bloated." This is false. They are smaller. However, if you have a 4K projector and a 120-inch screen, you will see the difference between a 15GB x265rip and a 60GB Remux. High-end videophiles still prefer the original Remux because no encoding process is truly lossless. x265rips
This is the standard for most web content. It is compatible with more devices. However, it is ironically less efficient than 10-bit for animation or gradients. | Parameter | Effect | Typical for high-quality