AVI vs RMVB, difference between AVI and RMVB format

Comparsion between AVI and RMVB

File Extension	AVI	RMVB
File Type	Audio Video Interleave File	RealMedia Variable Bit Rate File
Description	A file with the .avi file extension is an Audio Video Interleave file. AVI files can contain both audio and video data in a file container that allows synchronous audio-with-video playback.	Real Media video file compressed using a variable bit rate, which is optimized for the content of the video; RMVB files have become a popular format for Anime and Asian movie titles.
Developed by	Microsoft	RealNetworks
Pros	1) Can be opened by nearly any popular video player; 2) Most web-based storage services like Google Drive will also play AVI files when stored there;	1) Smaller file sizes and lower bitrates with better quality compared to DivX (.avi) files; 2) Popular in file sharing sites like BitTorrent;
Cons	The player must support the codec used to encode the video data so as to play it;	Only natively supported by the RealPlayer;
Help You Choose	As AVI is more widely-used, you can use AVI format to avoid format compatibility problem.	If you want to keep the videos with smaller file sizes while preserving the video quality, choose RMVB.
Programs that open AVI/RMVB files	VideoLAN VLC media player Apple QuickTime Player Microsoft Windows Video	iOrgsoft RMVB Converter Real Player Cloud VideoLAN VLC media player