Problem is there are different RAW formats. My Fuji camera, for example, produces RAW images in a Fuji format known as RAF.
These RAF images will not open in Paint Shop Pro 9 but will in Irfanview!
Your friend is not on his own!
Fujitsu Lifebook P727 laptop review
Best of the Grad Shows 2017: University of the West of England (UWE)
Best value Mac: Which is the best £1249 Mac to buy
Les meilleures GoPro 2017