AVI is a video format developed by Microsoft that stores both video and audio data in a single file container. It supports multiple codecs and is known for delivering high-quality output, though files can be large. AVI is compatible with most media players and remains a reliable format for local video playback.
MP4 is one of the most widely used video formats, known for its excellent balance between video quality and file size. It’s compatible with almost all media players and devices, making it ideal for streaming, sharing, and storing videos. MP4 files can contain video, audio, subtitles, and images in a single container.