RAM (Real Audio Media) is a flexible audio format developed by RealNetworks in 1995. Initially, it was intended to stream audio/video clips over the internet. It is designed in a way that users can listen to content while the file is still downloading. Today, many radio stations use it to broadcast content online.
RealPlayer Cloud VLC Media Player RealDownloader K-Lite Kodec Pack
FLV (Flash Video) is a video container format developed by Adobe Systems and comes with a .flv filename format. FLV is primarily used to stream audio, video, and text data such as subtitles. It supports MPEG-4 Part 10 (H.264) video codec and AAC sound.
RealPlayer, Apple QuicTime Player
VLC Media Player