Philips HDRW720/69 Operating Instructions Manual page 31

As soon as you turn on the DVD recorder, the currently selected TV
channel on the DVD-Recorder is recorded in a temporary storage
(Time shift Buffer).
Recordings in the time shift buffer will be automatically deleted e.g.
after 3 hours if the period of the time shift buffer is set to 3 hours
(factory setting). Only recordings marked in the Time shift Buffer will
be stored on the the built-in HDD. For more information, read the
next section 'The Time Shift Buffer'.
The following additional information is stored with each recording:
•) name of the recording
If no name is recognised, only the programme number (programme
name) and the time will be stored as the name.
•) length of the recording
•) recording mode (quality)
•) date of the recording
•) index picture of the recording
To facilitate the search of a specific position, a chapter marker is
recorded every 5 minutes. How you switch off this function you will
read in chapter 'User preferences for the HDD' in the section
' / '. After the recording is completed, you can
select these markers with N , O . Please make sure that the
chapter selection is activated (the '
info bar at the top of the screen). If necessary, you can activate it using
T/C .
As a result of the high data transfer speed of the HDD, it is possible to
play back recordings from the time shift buffer while the recording is
still in process.
Therefore, you can jump back to the currently selected TV programme
using JUMP BACK and watch a scene again.
Moreover, you can use all playback features such as still picture, slow
motion, search by time, search with N , O even with recordings
that are still in the time shift buffer.
In the meantime, the recording continues.
If you switch to another TV channel on the DVD-Recorder
( CHANNEL q , CHANNEL r ) a new title is created with the new
TV channel in the time shift buffer. If you watch a TV show only for a
short time (less than 60 seconds) before you change to a different TV
channel, no new title is created.
' symbol lights up in the
For easier navigation, you can change the time period of the time shift
buffer from 1 to 6 hours. 1 hour means that a recording is available
only for one hour before it is automatically deleted to make room for
the current recording.