If the JDR file isn't from a known video editing software, you might need to:

Given the ambiguity around JDR files, these steps are general. If you have more details about the file, a more specific solution might be available.

: The Mac version explicitly supports saving videos directly in MP4 format . Windows versions may offer

: Most proprietary dash cam formats encapsulate standard video streams (like H.264 or H.265) within a custom header.

or the GNET equivalent to download the PC or Mac Viewer for your specific model. Load Footage

Converting , a proprietary format used primarily by IROAD dash cams , to a universal format like MP4 is a common challenge because standard media players cannot decode them. The "Best" Way: IROAD PC Viewer