Yes, you can use original CD32 discs, including ones with CD audio tracks. As for playing CD32 games "flawlessly", 95% of titles work fine for me, including ones which use CD audio tracks, but CDXL animations still stutter a bit and some titles will refuse to work at all. Of course, the obvious advantage of using WinUAE/Amiga Forever is that you can have an "expanded" CD32 configuration, ie. more RAM, faster processor, hard drive, etc. The CD32 ROM's are presumably included with Amiga Forever 6?