It's not really a particular kind of ISO.
ISO and the .iso extension comes from and is used to store images of the ISO9660 filesystem used in CD-ROMs and later also used to store it's successor UDF. As a filesystem image it has a few limitations when it comes to storing CD-ROMs, mainly it only stores the ISO9660 filesystem and should not store CDDA (CD audio) and it only stores one filesystem per file. So if a CD-ROM had multiple tracks, they should be stored in separate ISO files.
For this reason, most default to storing CD-ROMs in a raw disc image instead. As those can contain both CDDA and multiple tracks in a single file. Even a raw disc image isn't a complete copy of a disc as it also contains a sub-channel, used to guide the laser. This sub-channel is actually required for some games to work properly, and not all of the raw disc image formats supports it.
If you would like to read more about it.
https://en.wikipedia.org/wiki/ISO_imagehttps://en.wikipedia.org/wiki/ISO_9660https://en.wikipedia.org/wiki/CD-ROMIn this case the CD-ROM is single track Mode 2 Form 1, so should be fine to store in a ISO.
If you want to convert a raw disc image into a ISO image there are multiple ways to do so. You could mount the raw image and re-rip it with a tool that does proper ISO or could be told to do so (Mode 1 2048). OPL Manger, used to mange your PS2 OPL files, has a raw to ISO conversion tool built in. And there are CLI tools like raw2iso that will do it for you.
I also made a xdelta-file that will go straight from the original Japanese raw disc image to a translated ISO, if you would like.
I consider this a bug/problem report and not a contribution, so credits are not necessary.