Optimize Macromedia Flash files which contain bitmap images by resizing pictures. Ratio slider position indicates resulting image size in proportion to original size. That means that by moving slider to the left edge of the gauge, image size is decreased and, therefore, quality and sharpness are decreased proportionally.
Heuristic method analyzes picture size in SWF file and selects optimal size to be displayed at the Player's screen.
Same as above, you may optimize Macromedia Flash files by decreasing JPEG images. If SWF file doesn't contain any JPEG images this settings won't affect resulting optimization.
Heuristic method analyzes JPEG image size in SWF file and selects optimal size to be displayed at the Player's screen.
You are able to convert all embedded images to JPEG format. Just make this option active to use it.