I'll just ask anyone here to check the "Audio" demo included in Jo engine. ATM it doesn't work.
Further, Bizhawk and Yabause refuse to load CD files that include mp3 or WAV files. Only SSF loads it, and even then it does not play the music file.
Trying to include the audio files the way Rockin' B says to also doesn't make them 'happy'.
There's got to be some way to get "CD-DA" included in an iso file, right?
I could fathom a workaround to that if we had SGL CD functions, but we don't. And given Jo Engines handling of the CD audio files is very low-level, it seems fool-proof to me.
I'm also not sure how SBL expects you to playback CD-DA.(/e: Oh, CD-XA / ADPCM .. which doesn't really help me!)
I just wonder if it is like this for anyone else.