EVS Xfile Version 1.11 - April 2007 User Manual - Manual (Page 4)

XFILE Version 1.11 – User’s Manual
Author: M. Lothaire
Issue 1.0
3
Introduction
DIGITAL ARCHIVING ON REMOVABLE MEDIA
The XFile has access to all footage recorded on XT6U, XT4U, AirBox and
SpotBox servers through the SDTI network. When a clip is created on one
of the servers, a copy is automatically transferred to XFile.
This copy is a background process, and as a lower priority on the network
compared to real-time transfers between servers for remote playback, in
order not to disturb the live production in any way. If the network is not
very busy, the transfer to the removable media can be performed several
times faster than real-time. As soon as real-time transfers are required on
the network, the backup process is slowed down to make enough
bandwidth available to guarantee these new requests.
Each clip is saved as a separate file on the removable media, including not
only video, audio and time code information, but also all metadata
associated with that clip: name, descriptors, creation date, original
location (server s/n, register), etc. The transfer between an XT6U or
XT4U to the XFile is a data transfer, i.e. no decoding/encoding process
takes place at any point, preserving the original quality of the footage,
including super-motion character if applicable.