Ian Michael and co have released a new version of the Neo Geo CD port to the Dreamcast, heres whats new:

This is the offical build it uses stef d's c68k m68k emulator this core is the best and fastest at this time. From the test builds people complained of "to much speed", "missing frames of anmation" and the *shadows* and some missing grafix this is now fixed. Loading screens are messed on a few games but in game should be correct for the first time correct speed. Yes slow down on metal slug 1 and 2 is there. This is slower then the test builds as they were 120% speed. Smooth ness now should make up for this. You will noticed this on Rangnagard and most fighting games the new smoothness and flashing shadows fully working. Aero fighters 2 the planes now flash and grafix are correct. Z80 is running but sound is disabled let me know if any other games work with cdda music.