What is the extension file of the dump image after you recover it from DWD recovery tool?

Have you already tried to use some software to convert them into ISO file?

If not and the image file extension is .img then I think Power ISO can be able to convert that or directly open it with PowerISO. You should be able to find all files inside this dump image using that software.

Another alternative is "imgtoiso" It is free software; you can google it.