Originally Posted by BoldlyDubious
[I]Media files are sold (not licensed) to buyers. When a buyer downloads a media file, her/his own copy of it includes embedded metadata that allow the seller to identify who bought it, and when. Buyers can do whatever they want with their files, such as giving a copy of them to their family; on the other side, they have a responsibility in the consequences of what they do.
This would be copyright infringement. You can't buy a paper book and then give copies of it to anyone you wish to - do you really think that you should be able to do so for eBooks?