8Restrictions when operating MPEG-4 imagesThere are following restrictions when "MPEG-4" is selected for the image compression method on the setup menu("NW camera setup" under "Camera").Refer to the setup instructions (PDF) for how to edit the settings.1. When displaying live imagesq Black screen may be displayed for the first few seconds (*) when the following operations are performed whiledisplaying live images.• When MPEG-4 live images are displayed (by switching camera channel, etc.)• When MPEG-4 image is enlarged (or when enlarged MPEG-4 image is resized to the original size)w It may take several seconds (*) for refresh interval of MPEG-4 image when displaying images on a 4-screen.Example: When "3 seconds" is selected for the refresh interval on the camera, MPEG-4 image will be refreshedin 3 seconds intervals.2. When displaying images sequentiallyWhen "MPEG-4" is selected for the image compression method of the camera selected for a camera channel on thesetup menu ("Sequence Setup" under "Camera"), the respective sequence step will be skipped.3. When playing recorded imagesq Displayed playback time may be fast for several seconds (*) when the following operations are performed whileplaying recorded images.• When MPEG-4 recorded images are played (by changing camera channel, etc.)• When MPEG-4 image is enlarged (or when enlarged MPEG-4 image is resized to the original size)(When operating to zoom in/out a paused MPEG-4 recorded image, image of several seconds later than the dis-played image may be enlarged.)• When the [PLAY] button is clicked again while playing MPEG-4 image• When the first frame is displayed by clicking the [NEXT IMAGE] button during pausingw Playback may be performed in several seconds intervals (*) when the following operations are performed whileplaying MPEG-4 image.• Reverse playback• Fast playback/fast reverse playback• Reverse frame playbackExample: When "3 seconds" is selected for the refresh interval on the camera, MPEG-4 image will be played in3 seconds intervals.e When two records are played sequentially, the last few frames of the former record and the first few frames of thenext record may be displayed overlapped.r When playing MPEG-4 image by designating time and date, playback may start from a point several seconds (*)after the designated time and date or from the first frame of the next record.