Replication is mostly a mechanical way of producing the disc. When you buy software, music or films from a shop this is the process they will have been made. This method is best used for runs over a 1000 pieces and can run in to the millions.
The [...]

You won’t receive many complaints from iPod customers. However, one thing sometimes mentioned is the inability to copy music and videos from their iPod to an additional PC Though the iPod has no problem moving songs, video clips and photos from a PC or laptop to iPod from iTunes, the reversal is not allowed. If [...]