More tests have to be done.
I have one of the earliest hard-drive MP3 players, the PhotoTainer. It has a 20GB drive, but also a CompactFlash slot.
I did a timing test to see how long the battery would last running songs off both storage media.
The battery lasted about 1 hour longer when using the CompactFlash memory card than using the hard drive.
I have experience with DRM-free ebooks, because I couldn't figure out how to do them any other way.
I've had several discussions with Adobe on how to put copying and printing limits on my line of 40 e-books (do to with learning and customizing AutoCAD, Visio, IntelliCAD, and so on).
All they can offer is a centralized server that hands out permissions. But for isolated customers -- the kind I have -- who buy and read my ebooks, this obviously isn't going to work.
Mass copying? It happens. One customer asked if it was alright for them to have made 16 copies. I replied, "Sure, just pay for them." They never did.
For classrooms, I recommend that the instructor have the college bookstore print copies for students.
But the problem of limited-DRM on ebooks isn't solved. I would love to have code inside a PDF file that limits it to being printed once and copied twice -- from the original PDF file only.
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More tests have to be done. I have one of the earliest hard-drive MP3 players, the PhotoTainer. It has a 20GB drive, but also a CompactFlash slot. I did a timing test to see how long the battery would last running songs off both storage media. The battery lasted about 1 hour longer when using the CompactFlash memory card than using the hard drive.
I've had several discussions with Adobe on how to put copying and printing limits on my line of 40 e-books (do to with learning and customizing AutoCAD, Visio, IntelliCAD, and so on).
All they can offer is a centralized server that hands out permissions. But for isolated customers -- the kind I have -- who buy and read my ebooks, this obviously isn't going to work.
Mass copying? It happens. One customer asked if it was alright for them to have made 16 copies. I replied, "Sure, just pay for them." They never did.
For classrooms, I recommend that the instructor have the college bookstore print copies for students.
But the problem of limited-DRM on ebooks isn't solved. I would love to have code inside a PDF file that limits it to being printed once and copied twice -- from the original PDF file only.
http://www.upfrontezine.com/ebooks