Emprex DVD-ROM Drive 16X - Manual (Page 11)

16X DVD-ROM
DRIVE
7
DVD Video Decoder for PC Systems
There are three types of DVD-Video decoders on the market:
Type 1: The RPC code has been set by the manufacturer and can’t
be changed.
Type 2: The RPC code can be changed up to the maximum of four
times (except the initial setting).
Type 3: With RPC Phase 2 drives, the DVD-Video decoder copies
the same region code as the drive
Here is a table to help you understand how DVD-ROM drives and
the decoder (DVD MPEG cards or DVD playback software) work
together for region code setting.
DVD Drive
DVD Decoder RPC Phase 1 RPC Phase 2
Type 1 Decoder Decoder & Drive
Type 2 Decoder Decoder & Drive
Type 3 Decoder Decoder & Drive
About This DVD-ROM Drive
This drive is a RPC2 DVD-ROM drive and according to DVD-Forum,
PC chip must be designed into DVD-ROM drives to record how
many times a user has changed the region code. The first region
code will depend on the DVD title you play and you are allowed to
modify the region code 5 times
(including the initial one). After the
fifth alteration, the region code will be locked and only those DVD
titles of the same region code could be played afterwards, so set the
code carefully.