I recently bought a LG4160B. I used ritek dvds which I say are pretty good media right. But for some reason the dvds that are burned cannot be read in the end as it will not work. For example i burn as data 26 files. But the last one doesn't work. It works for my dvd burner but for other computers it does not. As well, when I burn movies, it won't play in dvd players. It plays well in the beginning. But won't be able to play at the end. Does anyone know what the problems are. As well, I heard taht the LG 4120 B is better than the 4160. And as well, does firmware 302 actually help solve the problem. Thx for advance.