The Philips SACD 1000 also takes measurably longer to read a disc. I think that the combo units do this as they have to differentiate between whether it is a cd, dvd or sacd. If it senses that the disc is an SACD, it has to decode whether they are two channel or multi-channel. If it senses that it is a dvd, it has to tell what type of signal processing to apply to properly decript it.
One would think that the designers / engineers would have taken a progressive approach to sensing i.e. the machine would start off by looking for the simplest format and then proceeding from there. If it sensed the simplest format, which is CD, it would boot up and play from there. I have the feeling that the "turtle-like" machines are running through ALL of the formats and then selecting the most appropriate one and that is what takes so long. Sean