No matter what graphics plugin you use, it is using the same sound sources. Its from jabo's basic sound plugin. The audio is abit choppy. In some games like mario 64 its only very slight, and once you start playing the game you pretty much forget about it.
A known problem with Rice's plugin is that repeater glitch (someone called it 'bleed'). The author worked on fixing it, and did patch it so it didnt happen, but then it caused a whole slur of other problems.
On another note, to clear up so no one assumes the opposite, the author is infact going to continue on the project. This wasnt just some lets pick up some cash and hit the road type deal. Some of you might have seen rice released his 5.0 plugin 4 days ago. This will be encorperated in the next version, and lets hope it fixes the repeater glitch.
And guys, as far as compatibility, open up Project64X.rdb with notepad, and you will see every single known rom, and a Status= note next to each rom. I personally tested alot of roms and put notes. It isnt too specific, and compatible pretty much means without major flaws.
Ive noticed that rice's plugin is abit more smooth, and the daedalus plugin is abit more sharp, but a little choppy.