Grass Valley K2 Media Client User Manual v3.3 - Manual (Page 51)

June 5, 2009 K2 Media Client User Manual 51
About continuous record mode
Continuous mode operational considerations
Consider the following when planning for Continuous Record operation:
• Minimum continuous record length– 6 minutes
• Maximum continuous record length– Maximum record length is limited by the
amount of storage space and the compression settings used. If the fixed length you
enter exceeds the available disk space, the fixed length is automatically adjusted to
equal the available space.
• Minimum record to playback time– 6 seconds (internal storage). In other words,
playback in continuous record can start no sooner than 6 seconds after the start of
record.
• Modifying the continuous record name or length– You can modify the
continuous record name or length during record. If you reduce record length, the
oldest media outside the new record length is erased.
• Stopping continuous record– If the recording is stopped before the fixed length
is reached, the resulting program duration is the time elapsed since the recording
started. Like normal record mode, you cannot stop then start a continuous
recording. Once record is stopped, you must eject the program and create a new
continuous record.
• Transferring the continuous record program– The continuous record program
cannot be transferred to a file or networked device until record is stopped.
• Continuous record storage space is not reserved– Continuous record is allowed
to start as long as the record length you enter is less than the available storage;
however, the storage space is not reserved. For example, you could have enough
storage space to start the continuous record, but you are still allowed to transfer
media or otherwise fill disk space. Warning messages are displayed in the
AppCenter StatusBar when available storage reaches 10% total disk space. All
recording is halted when media storage reaches its full threshold.
• Pausing the continuous record program in Player application– You cannot
pause the continuous record program in Player application indefinitely. Eventually,
the record length is reached and the video at the current position is erased. As this
happens, the current position is advanced in 3 minute increments as the oldest
unused media is erased.
• Changing thumbnail image– Thumbnail images displayed in the Clips pane are
generated using the 16th frame of video. The thumbnail image for a continuous
record program appears as normal until the fixed length is reached. Then, the
thumbnail will update every 3 minutes as media is erased beginning with the oldest
unused media. As the media used to generate thumbnails is erased, new thumbnails
are generated.
• Erasing oldest media is suspended when creating a subclip– When creating
subclips in Player application, erasing oldest media is suspended when the first
mark is entered (mark-in or mark-out). This means that the continuous record
program length could grow larger than the length specified. Erasing media is
resumed and the oldest media outside the fixed length is purged when the second
mark is entered and you select the Accept button. You could inadvertently fill
storage space if you enter the subclip marks, but fail to click the Accept button.
NOTE: Erasing oldest media is also resumed when you exit subclip mode by