The word Instagram is a portmanteau of instant camera and telegram. On March 5, 2010, Systrom closed a $500,000 seed funding round with Baseline Ventures and Andreessen Horowitz while working on Burbn.
RealMedia Variable Bitrate (RMVB) is a variable bitrate extension of the RealMedia multimedia digital container format developed by RealNetworks.MVB files are popular for distributing Asian content, especially Chinese television episodes and movies. For this reason, they have become noticeably present (though not entirely popular, partly due to their incompatibility with other media players) on file sharing platforms such as BitTorrent, eDonkey and Gnutella.
The VIDEO_RM folder is a non-standard folder created by Philips writers, and doesn't have any impact on the video for most playback devices. You can safely ignore it. Because all the data (video and audio) exists in a muxed (combined) format in files in the VIDEO_TS folder, you can't simply pull out an audio file.