> It's interesting to see the music industry keep moving forward and allowing this type of stuff to happen (and the itunes match/etc services). The other two bi

> It's interesting to see the music industry keep moving forward and allowing this type of stuff to happen (and the itunes match/etc services). The other two big industries are so far behind. There is also a big difference in how easy/legal it is for a home user to convert the physical good to a digital good. Ripping CDs is trivial and legal. Ripping DVDs is illegal due to the DMCA, and ripping books is physically challenging. The larger the barrier to ripping, the more publishers can charge people to own both formats.