Thanks Cal I think you must be right, because I can't see any sensors or laser beams or other way for the deck to ascertain the diameter of the record. Guess I will have to get happy with 'semi-automatic' operation. The button that still mystifies me is the 'Turn' one, which just spins the platter for as long as you hold it down, almost like a DJ facility... can't see the Beogram, nice as it is, being exactly suitable for the dancefloor!