Sony PlayStation CFI-ZDD1 Instruction Manual page 8

Specifications
Region codes
Depending on the disc, a region code that is based
on the geographic region where the disc is distributed
may be assigned. The DVD region code is set to the code
of the DVD played for the first time. The region codes set
on the console are as follows.
Blu-ray Disc™ (BD)
PlayStation®4
format Blu-ray™
8
Region code
(Models sold in Blu-ray Disc™
region B countries only.)
(Models sold in Blu-ray Disc™
region C countries only.)
(Models sold in PlayStation®4 format
Blu-ray™ region 2 countries only.)
Blu-ray™ region 2 countries only.)
(Models sold in PlayStation®4 format
Blu-ray™ region 4 countries only.)
(Models sold in PlayStation®4 format
Blu-ray™ region 5 countries only.)
Notices
You can change the BD/DVD region code of your console
ˎ
to the disc played. You can change the region code up to
four times.
DVD discs that have not been finalized cannot be played.
ˎ
Do not use the following discs. If you do, the console
ˎ
may be damaged.
8 cm discs
ˋ
Non-circular discs, such as discs in the shape
ˋ
of a card, star, or heart
Discs that are cracked or deformed, or discs that have
ˋ
been repaired
Discs with paper or stickers on them
ˋ
A DualDisc features one side that conforms to the
ˎ
DVD standard, and another side with audio only.
The audio-only side cannot be played on the console.
When playing discs with content that was copied
ˎ
fraudulently, abnormal sounds may be produced
or the content may not play correctly.
For continuous playback of copyright-protected BDs,
ˎ
the encryption key for AACS (Advanced Access Content
System) may need to be renewed. The encryption key
is automatically renewed if the console is connected
to the internet.
Some discs may not be playable due to scratches,
ˎ
dust, the quality of recording, or the characteristics
of the recording device.