To put it concisely, Graboid Video is an application which allows you to stream videos from Usenet. It differs insofar as it allows you to watch the video while you’re downloading it, which is something that other Usenet services — such as Giganews, do not support.
If you’ve ever endulged yourself in the Utopian world of Usenet, you will realise that all sorts of files are available. Thousands upon thousands of film makers, and music makers, as well as other creative people, choose to distribute their works over the internet — eradicating the need for media distributors such as 21st Century Fox and Universal — much to their dismay and annoyance! However, in addition to these legally distributed works, Usenet is rife with copyrighted material which shouldn’t be there. Unfortunately Usenet is difficult to control, since it’s built up of individual networks, making it almost impossible to get files removed from every single node after its initial propogation — something which is extremely quick, and will become quicker still with increased network speeds.
Graboid works in a very similar fashion to your favourite Usenet providers — such as Giganews. However, Graboid only provides videos on their network — such as television shows, movies, and videos of a more adult nature for those that way inclined. The benefit here is that if you’re looking to watch freely distributed movies, such as many independent movies made by individuals such as yourselves, then Graboid cuts past all the nonsense, and provides only the videos. In downloading obscure items from typical Usenet providers, one can never be sure if it’s password protected or contains viruses — with Graboid this worry is entirely eradicated, because Graboid only finds valid videos that contain playable material.
Graboid is quite clever in its functioning. Usenet downloads components — usually in the form of RAR archives, which contain a partial video and the PAR files. The way that Graboid works, in a nutshell, is that it extracts these unfinished RAR files, and rebuilds the partial AVI to allow you to watch that part of the AVI. This works in a very similar way as to how AVIPreview works — if you’ve ever used that application for previewing videos you’ve been downloading.