Improved measurements of color-suppressed decays (B)over-bar0→D0π0, D0η, D0ω, D*0π0, D*0η and D*0ω

We present improved measurements of the branching fractions of the color-suppressed decays (B) over bar (0)-> D((*)0)h(0), where h(0) represents a light neutral meson pi(0), eta or omega. The measurements are based on a data sample of 140 fb(-1) collected at the Upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider, corresponding to 7 times the luminosity of the previous Belle measurements. All the measured branching fractions fall in the range 1.4-2.4x10(-4), which is significantly higher than theoretical predictions based on naive factorization.