Rosendahl bonsaiDRIVE - Manual (Page 26)

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MENU 085 COLOR BAR
For test purposes you can activate the internal 75% color bar
generator by pressing the [+] key. Press the [
■ ] or [–] key to return to
the menu.
The color bar generator is only output on the analog video outputs.
MENU 086 DYNAMIC VIDEO OFFSET
Digital TFT video displays and projectors produce frame delays
caused by the internal scaling / framing processes.
To compensate these effects it is possible to apply a video offset of
maximal +/- 8 frames against the bonsaidrive's internal time code and
audio engine. This offset is dynamic, which means only effective
during forward play operation. Fixed images when the transport is
stopped or playing reverse are unchanged to ensure correct spotting
and editing.
Note: Set to +0 frames for standard use with a tube monitor!
A value different than +0 is indicated in the time code inserter
showing a semikolon ";" in-between the hours and minutes.
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MENU 090 FORMAT DISK
The hard drive is used with a proprietary bonsaidrive format which
divides the hard disk into blocks (clusters) of 512 Mbyte. Such a
block can store about half a minute of lossless (Huffman code) video
together with 10 channels of audio.
Every recording - no matter how small - uses at least one of these
blocks. Erasing a clip frees these blocks for rerecording. The
fragmentation of the whole hard disk is thus limited to (2 x disk
capacity/GB) units.
Parts of the hard disk which show errors are automatically avoided by
the recording.
The so called metadata, which have the LBA addresses and other
data managment informations, are stored in the lower parts of the
hard disk. When the machine starts it checks whether valid metadata
exists for 255 clips.
If no clips are present or some have erros, the machine goes to the
menu FORMAT DISK.
When carrying out the format disk command new metadata for 255
clips is written. All clips which are on hard disk are deleted.
The complete action takes less than one second.
Hold down the [RECORD] key and press the [
◄ ] key to format the
hard drive.