If it's only 6 months old it may still have some warranty left with the manufacturer. Although with the hassle of arranging a return and the postage costs involved, it may easier to grab a new one.
Don't count on it, i don't think they give you more than 3 months for those kind of things these days.
I also like LiteOn myself -- never had any of those gone bad over the years, but have run into quite a few toasted NEC's.