Sony SLV-SE230G/I Operating Instructions Manual page 65

Notes
• No index signal will be added when recording starts from recording pause.
However, an index signal will be marked if you change the programme position
during recording pause.
• When you press . (index search), if there is nothing recorded before the
selected index signal, playback may not start exactly at the index signal.
60 Searching using the index function (not available on SLV-SE230G/I)