Update, 1 day later the laser drive died after playing fine for 4 hrs the day of replacement. Upon inspection of the replacement unit it felt lighter and was stamped "B" whereas the Cary unit was heavier and stamped "A" otherwise cosmetically similar. Does anyone know what those blue ink stamps are on electronic parts.....A stock, B stock? The replacement no longer spun the disc to read upon insertion of a disc. Looks like I'll be getting another from Cary, lesson learned.