Have you ever open a file in. rmvb extension but cannot open it successfully?  In lots of cases, you might not have a good idea to open RMVB files.  RMVB short for RealMedia Variable Bitrate which is a file format developed by RealNetworks. Actually, the quickest and easiest way to open RMVB is to download … Continue reading One most efficient and fastest way to convert RMVB to MP4