Kanopy: Provides ad-free access to over 30,000 films, including Hollywood classics, if you have a participating public library or university card. :
: Unlike older formats like MP4 or AVI, MKV can store an unlimited number of video, audio, and subtitle tracks within a single file.
Unlike MP4, which has limited support for multiple tracks, MKV can store an number of audio and subtitle streams. It is also open-source and royalty-free. ⚖️ Is it Legal and Safe?
: Popular for offering various resolutions, from 480p to 4K, often with multi-audio support.