1)   YoutubeCrazyVideos 2 0
YoutubeCrazyVideos 2 is a powerful desktop software that improves the youtube experience, it is Completely freeware without malware (spyware,adware,...) with an intuitive user interface, you can quickly search, play, download, convert, extract audio.

 2)   Aiseesoft FLV Video Converter 6.2.18
Aiseesoft FLV Video Converter is able to help you convert FLV and YouTube videos to all popular video and audio formats with super high conversion speed and excellent image/sound quality.

 3)   Xilisoft YouTube Video Converter 2.0.3.1211
Xilisoft YouTube Video Converter is designed for YouTube video fans to download FLV videos from YouTube and convert YouTube videos to AVI, MPEG, H.264/AVC, MOV, RM and other videos compatible with iPod, iPhone, Apple TV, PSP, Zune, 3GP mobile, etc.

 4)   Aiseesoft YouTube Converter Mate 5.0.26
Aiseesoft YouTube Converter Mate is not only a Video Converter but also an online YouTube Video Downloader. With it, you can download online videos from YouTube and many other online video websites, then convert them to any other video/audio formats.

 5)   Aiseesoft Youtube Converter Suite 6.2.18
Aiseesoft YouTube Converter Suite is bundled of three outstanding YouTube assistant tools: Aiseesoft FLV Video Converter, Aiseesoft Video to Flash Converter, YouTube Downloader Pro.