[js2]

I converted mine years ago using iPhoto but according to Wikipedia, there are several programs that can do the conversion:

https://en.wikipedia.org/wiki/Photo_CD#Converting_Photo_CD_i...

[dhosek]

iPhoto no longer exists and the replacement, Photos doesn't support it. A free command-line tool I found doesn't run any without signing and I need to find the dependent library for JPEG handling to use it. Other apps are paid.

[dhosek]

And an online service that claims to do it only extracts the lowest resolution scan from the file.