Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Nullsoft Streaming Video (NSV) is a media container designed for streaming video content over the internet. NSV was developed by Nullsoft, the makers of Winamp. The NSV format is another example of streaming video formats, offered by various companies and media players. Windows Media, QuickTime video, RealAudio and RealVideo streams are just a few examples of these, and each have their benefits and shortcomings.