Disk as Tape Interchange
 
 
Tape interchange is frustrating (often unreadable)
Beyond 1-10 GB send media not data
- FTP takes too long (hour/GB)
 - Bandwidth still very expensive (1$/GB)
 
Writing DVD not much faster than Internet  
New technology could change this 
- 100 GB DVD @ 10MBps would be competitive.
 
Write 1TB disk in 2.5 hrs (at 100MBps)
But, how does interchange work?