To play back a clip, press the PREV button to move to the start frame of any clip, or press the F REV button to move to any position.

After disc insertion

The unit stops at the position of the disc when it was most recently ejected.

Press the PLAY/PAUSE button to resume playback at the most recent position.

The playback position is saved to the disc when the disc is ejected, which allows playback to start at that position whenever it is loaded into any XDCAM player.

Note

The playback position is not recorded to the disc if the disc is write-protected.

Deteriorating playback conditions

Deteriorating playback may be due to the following causes.

Scratches and dust on the disc surface

This includes fingerprints, dust from the air, tar from cigarette smoke, and so on.

Scratches and soiling which occur before recording are not a problem because they are registered in advance as defects, and recording avoids them. However, scratches and soiling which occur after recording can lead to deteriorating playback conditions.

Aging of disc recording layers

Over several decades, the recording layers of optical discs can age and cause deteriorating playback conditions.

Deteriorating laser diodes performance The performance of the laser diodes used in optical heads can worsen with age, leading to deteriorating playback conditions.

Refer to the Maintenance Manual for an approximate guide to when it is time to replace optical heads.

To prevent playback conditions from deteriorating

Pay attention to the following points when handling discs.

Do not open disc cartridges and touch discs directly with your hands.

Do not store for long periods in locations which are dusty or exposed to air circulated by fans.

Do not store for long periods under high temperatures or in locations exposed to direct sunlight.

If playback conditions have deteriorated

Read errors occur when playback conditions continue to deteriorate.

When a read error occurs, the message “DISC ERROR!” appears, the video freezes, and the audio output is suppressed.

If this happens, check the following points.

Whether the disc displays the same playback

condition on other XDCAM devices: If so, the surface of the disc may be dirty or scratched, or the performance of the recording layers on the disc may have worsened due to age. Do not use discs with these symptoms.

Whether every disc inserted into an XDCAM device displays the same playback

conditions: If so, the performance of the laser diodes may have deteriorated. Check the total optical output time.

Deleting the recorded clip

For details, see “Deleting clips” on page 112.

Shooting 4 Chapter

Basic Procedure for Shooting 79