I have CDSA se before and sold it to my friend when I upgraded to TSD1+DAC2. Recently my friend told me the CDSA se has something wrong with the tray, every disc he played will have a circular mark about 1.5cm from the rim. This is exactly where the tray has a recess for the smaller disc. I guess the mechanism is skewed, when the disc is played the mechanism should raise the disk to spin. Somehow it didn't raise high enough so that when the disc is spinning it touches the tray. Of course it is only my assumption.
Bryan
Bryan