Choreographers design and direct dance routines. They not only invent and perfect dance moves, but they also practice them to make sure that they coordinate with music and provide entertainment for the audience. The word âchoreography actually comes from the Greek words that mean âdance writing..
Full Answer. A paper or plastic sleeve on a CD adds 0.11 ounces. A slim plastic jewel case adds 1.5 ounces, and a standard plastic jewel case adds 2.5 ounces. Using these figures, the weight of 100 CDs in sleeves is 69 ounces. The weight of 100 CDs in slim plastic jewel cases is 208 ounces.
Storage: The type of material of the CD jewel case allows storage of CDs for decades without ruining the CDs. The same is not as true with other cases, since paper can stick to the CDs due to air, humidity, and other factors. The CD jewel case may also be preferred because it offers orderliness on a shelf.