Hi!
Have tried to do make an DDP?
read about how to make a DDP and then playback with Steinbergs DDP player
CD image is more for a Data CD or as a temporary file to make a Audio CD
check here for manual online or off line
https://www.steinberg.net/en/newsandevents/news/newsdetail/article/ddp-player-for-free-5103.html
regards S-EH