Know any good relaxing music?

I work at a job that requires me to do boring jobs like wrapping small chocolates for eight hours straight. I can't stand to listen to the radio but I often have my iPod on, but after eight hours a day, five days a week my music is getting monotonous. And i have lots of different genres. I hate the thought of overplaying my music. Does anyone know any good CD's with relaxing sounds, like rain or new age type music, maybe designed to not be boring and repetitive?