I am sharing below against you a little video that will allow you to see how the packaging is made of these CDs to date (March 2015). I think it's perfect, you have nothing to fear for transport, the HDD is well protected and it will not be damaged if the package comes to fall. I could see that this was not always the case in the past, the problem seems to have been solved.
At the sound, I have no comment on that drive 3TB, it is also quieter than my other hard drives, ie HGST 4TB WD Caviar Black 1TB. For me, there is not much difference between my Caviar Black and Green, I am even more surprised, but on the other hand my Black 2011 date.
I recommend this purchase with closed eyes, best value in my opinion and very good reliability by several tests. I usually edit my review if I have a concern, as time will tell what it is, if necessary you can always leave a comment and I'll be happy to respond.
Attention, it is not possible to put a Windows OS on a disk> 2 TB and boot Windows. Backup disks can be used as, data, etc ... On the other hand, it is not worth using as big a hard drive for OS.
On some motherboards you will need to update the drivers for your chipset that handles the hard disks, so disks> 2TB to be recognized (that is the case for almost all computers that were created after 2010).
Question flow, when I make copies from disk to disk (internal SATA III or with an SSD), I have a rate of about 50-60 Mb / s so all ok.