The Blur community (still active on Reddit /r/BlurGame and Discord) has developed its own fixes over the years.
If you are trying to configure your setup and want to narrow down your next steps, What are you running (Windows 10 or 11)? blur no cd dvd-rom drive found
Transfer the ISO to your main gaming computer and "mount" it using Windows' native Mount feature (right-click -> ) or via software like Daemon Tools Lite. This tricks the game into thinking the disc is always inserted. The Blur community (still active on Reddit /r/BlurGame
If you are using an external USB DVD drive, try a different port or ensure it is powered on before launching. blur no cd dvd-rom drive found