This replaces an older one and this rated very high on reviews and I have to agree. I also used the sound portion and found my Bowes surround sound system is worth the money I spent for it. This has more brushes which I think made for a more thorough cleaning of the laser than that of the 2 brush cleaner it replaced. And I actually saw a differance because some little sparkly things I saw in one of my movies wasn't there anymore. I was begining to think my drive was going bad, now I know it was just dirty.