I looked up how to open PS1 discs on a PC and came to a section taking about a program that can open .XAI files which is the file extension the audio files are stored as on the disc, the program is quite old as you can imagine seeing as there would not be much demand for an updated version as the old version works well. The program automatically converted the files into WAV files at their full quality, then I converted them to M4A's to add the info and artwork, for some reason iTunes does not like WAV files and always degrades the quality when I put WAV files directly onto my phone, but since these are Apple lossless files they sound exactly the same as the WAVs.
http://www.zophar.net/utilities/psxutil/psxmc.html
This was the program I used, it says it is a trial version but I ran into no issues when trying to open all the files. If anyone wants to open their own disc for the files be warned that the audio files are duplicated several times for some reason, there are four race track songs and then the start, win and lose sounds, these are duplicated every four files, so I think they were not very well optimized.
I was also able to open the three opening movie files but as we all know they are not particularly good quality at the start of the game so there is no point ripping them as the PC ones are much better quality.