96 is for Playstation on CD, CD-Text and CD-Graphics, some Audio and Karaoke. Also required in Nero (dao96) when writing a SafeDisc, LaserLock or ProtectCD protected image.
Disc At Once (DAO) is the preferable method of writing an image except in Blindwrite where SAO seems to work for most writers.
RAW is required for error-based protection, Illegal Tables of Contents and dummy files.
In Alcohol, just pick a profile to suit and shoot. Or if you’ve mucked it up - RAW DAO 96 is not gonna hurt a thing (most of the time).
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