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.
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MKV is a container format for holding multiple audio, video, picture, and text data such as subtitle tracks. It is similar to other common containers like MP4 and AVI, although MKV is open in the specification. For video contents, MKV uses a .mkv filename extension, .mka for audios, and .mks for subtitles.
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