MKV stands for Matroska Video, a container format video with multiple audio and subtitle tracks in one file. Many people use MKV to store HD movies, anime, and series with subtitles. Regarding quality, it can keep very good video and sound quality but still depends on the codec used. For example, suppose the MKV file uses the H.264 codec. In that case, the video quality will remain the same.
However, because of the high quality and extra features, MKV files can be bigger than MP4 or AVI, which can be a drawback of the format. Also, you might have compatibility issues because not all devices and media players support MKV files. Still, most media players support it, like VLC Media Player and Media Player Classic. Moreover, MKV is free and open-source, meaning anyone can use or develop it without paying license fees.
In 1992, Microsoft developed AVI (Audio Video Interleave), a container format that holds video and audio data. It is supported by many media players and editing programs, especially on Windows systems. It's been around for a long time, so it also works on many older devices. It also uses different codecs, such as DivX and XviD, so the quality and size of AVI files can vary. In addition, one of the advantages of this format is its simple structure. With that, AVI files can often be cut, trimmed, or joined without re-encoding, saving time and preserving quality.
On top of that, this format is great for storing raw footage because it typically doesn't compress much, so it keeps almost every detail. However, expect that your AVI files have a larger file size than other formats. Also, AVI is widely supported, but some modern devices and media players, especially on macOS, iOS, and web apps, may not play AVI files without extra software or codec packs. Nevertheless, if you prefer storing high-quality videos, consider using AVI, but be aware of the file size and compatibility issues.
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