im not sure about the problem you have, maybe i can help abit.
heres my setup for neocd. the neocd and neocd% folders are in the psp/game directory and the roms are in the neocd folder. i inserted the neocd game disc to my pc, went to the root and drug everything into a folder named street slam. then i put each game in their OWN folder like, psp/game/neocd/roms/street slam. works fine sound and all. ive got 1.50 and as far as i know neocd doesnt support zipped roms.
i hope this sheds some light your way.
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