Mariah Carey's #1's is as much a time capsule of 1990s pop and R&B as a record of one woman's chart toppers: the disc chronicles a shift from the sweet, nearly '50s-style "Vision of Love" to more recent hip-hop-lite grooves featuring heavy input from Puffy Combs ("Honey"), Jermaine Dupri ("Sweetheart"), and O.D.B. ("Fantasy"). Some hit, some miss, but all feature the fluttery swoops that Carey substitutes for expression of feeling. Depth is beside the point, but few of these tracks are even fun. Still, after eight years, there seems to be no stopping her, and this album will hardly break her streak of successes.