Great Downloader easy to use can convert into multiple file formats. Fast and impressive
MakeMKV - MakeMKV is a software solution for converting video files into the MKV file format.
Video DownloadHelper - Browser extension to download videos from the Web
HD Video Converter Factory Pro - WonderFox offers DVD Ripper Software, UHD/HD Video Converter, YouTube Downloader to help users rip and convert DVD to AVI, MP4, MKV, iPhone, iPad, etc, convert video(including SD to HD), compress HD video flawlessly, and download video easily.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
AnyDVD - Hardware layer for DVD decryption.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.