Sega CD Problem- Lunar 1

I'm using Picodrive 1.51 on a fat with 5.00 m33-6. Lunar: The Silver Star seems to work perfectly... until I run into an animated cutscene. The sound is so out of sync that if the scene is meant to finish with a voice clip, I don't hear the last 1 or 2 seconds of speech! Does anyone else have this problem? I've found no help. Lurking all around, I've seen people with the same problem advised to rerip the ISO, re-encode the MP3s and use different versions of the emulator. I've tried all three and failed. If it helps any, it would seem that Sega CD emus for the PC, namely Gens, Dgen and Kega, have this same issue. Can anyone help?

It's probably just an emulation issue that could be fixed eventually through updates.

Does it run the game alright after the cutscene?

Yeah, everything but the cutscenes is fine. I'm kinda worried that it's a shared problem amongst all SCD emus, though... I may have to just play it that way.