I have a little trouble with Time Capsule. When time machine starts ca puts "connection to the backup volume" and AC for hours without starting backup. But I come to accede to Time Capsule to see the recorded data via the finder. The light on the TC is solid green. The Western Digital Green Power is no longer available, but that replaces the Samsung is a very good album, less expensive, a bit noisy in rotation, but that does not "scratch" it. When next Time Machine backup, the system will recognize a few minutes old backups, without realizing that the disk has changed. It will no longer try to delete the oldest backups, as it has enough space for new backups. Also please tell me something about the Music server on Time Capsule.!!