petite mise en garde avec 'regionset', parfois tu ne peux changer de région que 5 fois, et pas une de plus, parfois oui.
What the hell are region codes?
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Video DVDs contain most often a region code flag indicating the geographical
region where the DVD was published (enabling the film industry to control
the distribution). There are eight region codes possible, currently six
are used:
1 North America (USA and Canada)
2 Europe, Middle East, South Africa and Japan
3 Southeast Asia, Taiwan, Korea
4 Latin America, Australia, New Zealand
5 Former Soviet Union (Russia, Ukraine, etc.), rest of Africa, India
6 China
On delivery, the Region Playback Control (RPC) of most DVD drives is
unconfigured (bitmask=0xFF). The drive firmware allows you to change the
region setting, but on all drives with hardware RPC (Phase II drives) you
are limited to five (5) changes. After the fifth change, the region setting
is permanent -- on some drives you can upgrade the drive firmware and have
then additional five changes, on other drives you won't be able to change
the region setting any more.
There are a couple of region code free DVDs on the market, but some drives
will deny playing them without configuring the RPC to a region first.
After setting the region, the drive will refuse playing any Video DVD (maybe
also Audio DVDs, I never had one to try out) with a different region
code than the one configured in the RPC.
So if you set a DVD drive to region code 2 (RC2), you'll only be able to play
region-code-2-DVDs from Europe, Middle East, South Africa and Japan -- the
drive will definitively not play any US or Canadian DVD, nor Austrailian or
Chinese. So if you cannot play a DVD because of the wrong region code, there
is nothing the DVD player software can do about but changing the region code
of the drive if you have any changes left.
So always be very very careful changing the region code, it could be your
last try before you're forced to buy a new drive (or play foreign DVDs
forever).