WOW! That is some great info, thanks! I tried using the software at work and it works fine on my computer, but when I load the SD card with the new .ild file(s) it doesn't play on the Spencer's laser, which is weird because I was able to load a static image onto the laser on my home computer. I don't believe I am doing anything different, maybe it's this computer? The Spencer's laser reads .ild files, that's what is on the SD card that came in the unit. I am not sure what a CTN file is or if the Spencer's laser can read it...any more help is appreciated!