FFmpeg (command line) or a dedicated SWF player like Elmedia Player (Mac) or SWF Player (Windows).
If you no longer have access to the official software, or if the manufacturer's website is down, you may need to rely on third-party conversion software. However, because JDR is proprietary, standard tools like HandBrake or online converters often fail or result in audio-video desync.
Visit the manufacturer’s official support or download page.
If you don’t have Jade software, the JDR file is likely unreadable — you’ll need to ask the file’s source to export it to a standard format first.