What is the difference between a public dataset and a l...

Public datasets, such as YouTube videos, are accessible without authentication but may still violate terms of service if scraped. In contrast, a legally safe dataset consists of content where you have explicit rights, such as CC-BY-SA licensed Wikipedia data, or a strong fair-use justification. Common Crawl is public but remains largely copyrighted, relying on implicit fair-use arguments rather than explicit legal safety.