: High-quality or "extra quality" claims on unknown sites are often bait to encourage users to download specialized "viewers" or "codecs" that are actually Remote Access Trojans (RATs) or other malicious software.

: Sites with names resembling popular terms but with intentional misspellings are often "typosquatting" domains used to distribute malware or steal personal information.

This new technology allows for even higher quality video at lower file sizes, making 4K streaming more accessible to people with slower connections.