>>105986855 (OP)i think the best is you open the top and put it in that way.
But if its just slot vs tray load?
i like slot because you just insert it and it does the rest, but more i think there are more moving parts thus more potential points of failure. thinking again. perhaps tray load is the best. Menial exposure of the scanning lens. Maybe less moving parts than the slot load.
tl;dr.
slot load is the most enjoyable when it works.
top load is the best but, i think it exposes the lens an dust can affect it? i really don't know
tray load its okay, you have to place you disk on the tray then close the tray.