OK, I've been using a NEC for a few years and never had any problems with anything I burned, CD or DVD. Recently I switched to the 20A1H and everything seems good but audio CDs. Of the four players I use, 2 play ok but are slow to find the 1st track, 1 won't play at all and the last gives a not finalized error. I have tried DeepBurner and Nero, all write methods and most speeds with same results from all. Anybody have any suggestions?