A small flat (hence the 4 stars) on packaging: derisory disc protection, provided by a little bubble plastic sheet (partially punctured) and put everything in a box in any box, not equipped with capital adapted to the product. Therefore discs freely walking in their respective boxes. That does not match the label can be seen on the Amazon site as what the packaging used are certified by Western Digital for their products.
I guess this packaging is the fact that the supplier at Amazon supplies the WD drives, for the different sub-packages were properly restrained in the global carton. However, as the seller to whom the buyer places an order, Amazon is responsible for the entire order processing and must ensure that its suppliers apply the same level of quality than themselves.
Having read a number of comments relating to customers who have received defective discs, I was a little worried at the start-up configuration. It seems that luck was with me;)