DVD Player used to open the ISOs with no further ado, but it now will open ONLY the enclosed (I think they're) TS files, and I've been unable to find any way to access them to select them, because there's no "Show contents" option for .iso files.
The ISOs still play in VLC Player, and that's the full extent of my experience.
double click the ISO to mount the disk image, that will reveal the TS files in the mounted disk image in Finder
