I've always turned with a wince when I've heard the suggestion to run a CDP continuously like that - of course, thinking about my high-end player. Rather than put an expensive player through such a duty cycle, it would seem to me that one would want do this with a cheap unit, second hand, hand-me-down, classified ads for twenty bucks type of player. It's been widely suggested before - for doing this sort of work, some "beater" equipment makes a good tool.
