Handling Discs - Sony PDW-U4 Operating Instructions Manual

Professional disc drive unit
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When supplying power using the DC power inlet connector,
connect the supplied AC adaptor and a power cord (not
supplied).
When supplying power using the USB connector, connect to
a computer that can supply 60 W or higher via the USB PD
3.0 standard or to a computer equipped with an expansion
board using the supplied USB Type-C cable.
Power cannot be supplied from a computer other than
those specified above.
Note
The unit supports power supply from an AC adaptor or by
USB Power Delivery.
Connection of an AC adaptor is not required when powered
from a USB PD compatible device.
If both a USB PD compatible device and AC adaptor are
connected, power supply from the AC adaptor takes
precedence. Both cannot be used together for redundancy.

Handling Discs

Read/write discs
This unit uses the following professional discs for reading
and writing:
Disc
No. of files which
can be created
PFD23A
5,000
PFD50DLA
6,000
PFD100TLA
20,000
PFD128QLW
20,000
Note
• This unit cannot read or write the following discs.
— Blu-ray Disc
— Professional Disc for Data
• PFD128QLW is a quad-layer WO disc. Pay due attention to
the following points.
— Even if you delete any files written to the disc, no
available storage space will be increased.
— Reformatting the disc will not increase the available
storage space.
— Repetitive file writing will consume the recordable
resource space (for writing the disc management data,
etc.) on the disc. If no available recordable resource
space is left on the disc, file writing may be disabled
even with sufficient available storage space remaining.
— No file can be written after the disc is finalized.
• The operation which you can execute varies depending
on the file type stored in each directory. For details, refer
to the help file of the utility software.
• Discontinued Sony single-layer discs and some third-
party single-layer/dual-layer discs made in 2013 or earlier
can only be played.
For details, download the release notes from the Sony
Creative Software web site (page 4).
Notes on handling
Handling
The Professional Disc is housed in a cartridge, and is
designed to allow handling free of risk from dust or
fingerprints. However, if the cartridge is subjected to a
severe shock, for example by dropping it, this can result in
Max. data capacity for
user data recording
21 GB
46 GB
92 GB
120 GB
damage or scratching of the disc. If the disc is scratched, it
may be impossible to record video/audio, or to play back
the content recorded on the disc. The discs should be
handled and stored carefully.
• Do not touch the surface of the disc itself within the
cartridge.
• Deliberately opening the shutter may cause damage.
• Do not disassemble the cartridge.
• The supplied adhesive labels are recommended for
indexing discs. Apply the label in the correct position. If
the sticker is peeled off or not put in the correct position,
it may damage the unit. Also, stacking stickers may cause
damage to the unit.
Storage
• Do not store discs where they may be subjected to direct
sunlight, or in other places where the temperature or
humidity is high.
• Do not leave cartridges where dust may be able to gain
ingress.
• Insert cartridges in their cases and store vertically.
Care of discs
• Remove dust and dirt on the outside of a cartridge using
a soft dry cloth.
• If condensation forms, allow ample time to dry before
use.
Write-protecting discs
To protect the content recorded on the disc from accidental
erasure, move the write-protect tab on the lower surface of
the disc in the direction of the arrow, as shown in the
following figure.
Lower surface of the disc
Write Inhibit tab settings
Recording enabled
8
Write Inhibit tab
Slide in the direction of the arrow
Recording disabled

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