FLV Converter SDK 1.0.1.5
Moyea FLV Converter SDK offers a technical solution to convert FLV online. It supports to convert FLV files youtube video to other format video files, such as flv to avi, flv to 3gp, flv to mpeg, flv to wmv, flv to mov, flv to mp3.

Flash Video MX SDK V2 2.0.3.2
Flash Video MX SDK V2 is to help server applications to convert the uploaded videos from virtually any format to Flash video (FLV), Flash (SWF), and AAC/H.264 MP4! With it you can build a video website like that of YouTube, Google video, Yahoo! Video

Movavi VideoSuite 5.7.4
Capture video. Convert video formats; Save video and DVD to your iPod, iPhone, PSP, Zune, PDA, cellphone. Edit video, insert transitions, add filters and special effects; Rip, backup and copy your DVDs, Burn data, audio, video CD/DVD, create DVD menu