Great Downloader easy to use can convert into multiple file formats. Fast and impressive
PTE AV Studio - Create photo and video slideshows with effects and styles.
Video DownloadHelper - Browser extension to download videos from the Web
ProShow - ProShow is a dedicated tool for creating slide shows from your photos, video and music.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Imagination - Imagination is a lightweight and simple DVD slide show maker for GNU/Linux.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.