Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Video DownloadHelper - Browser extension to download videos from the Web
streamWriter - streamWriter records music broadcasted by internet-radiostations. Features:
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Downie - Video download for OS X. Downie supports at this moment over 1,000 different sites.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
Jaksta - Get great Video, Music and Radio downloaders and converters for your Windows PC and Apple Mac. Jaksta recorders are easy to use and fast!