✔ 最佳答案
The latest version of PS3 can upscale DVD picture resolution to 1080p whereas most (but not all) DVD players cannot. But it must be the latest version which can do the job. PS3 can decode DTS and it also has optical output. As it also can play Blu-ray disc and SACD, it is better than ordinary DVD players.
2007-06-13 21:45:42 補充:
But remind you that if your TV is just a CRT TV or low resolution LCD/Plasma TV, the difference will not be big between PS3 and ordinary DVD players.