Correct, no ld player did upscaling or progressive scan. They all put out a 480i image. Players like the X0 and X9 were just optimized for LD playback. MUSE lasers were true high def. I think 1125 lines or so is correct. I've heard that the quality varied by title. Some titles supposedly look awesome, such as the scenary type discs. Others were not that great. Plus you still had to have an outboard MUSE decoder to "decrypt" the MUSE signal. My X9 will play MUSE discs, but the selection of titles I would have purchased was very small and not worth the costs. MUSE discs are still quite expensive.