DVR is a video recording file format commonly used by digital video recorders. It stores video content captured by security cameras or other recording devices. DVR files are typically large but provide high-quality footage for surveillance and monitoring purposes. They can be played back using compatible software or media players.
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.