FLV to SWF Converter to convert YouTube FLV video and Flash FLV video to SWF at the highest speed. Key features: 1. Supported video of YouTube FLV video and Flash FLV video. 2. Provide the highest speed possible to convert video files. 3. Split a single file into several files by preset time or size. 4. Crop frame size; adjust brightness/saturation/contrast and add artistic effect; add watermarks. 5. Lots of parameters are adjustable. 6. Select multiple output formats for one source file at one time and get them converted within one click.