Having problems with your Advent Netbook ?

A friend placed a malaysian cdrw or data dvd in my computer and now my cd/dvd player is juddery. Sound and dvd files play fine off the hard drive. It is the mechanical drive that malfunctions. Can you help me fix it?


Answers :

It's not mechanical fault. In DVD drive,there si one thing called "DVD Regional code"

What are regional codes ? 

Motion picture studios want to control the home release of movies in different countries because theater releases aren't simultaneous (a movie may come out on video in the U.S. when it's just hitting screens in Europe). Also, studios sell distribution rights to different foreign distributors and would like to guarantee an exclusive market. Therefore they required that the DVD standard include codes to prevent playback of certain discs in certain geographical regions. Each player is given a code for the region in which it's sold. The player will refuse to play discs that are not coded for its region. This means that a disc bought in one country may not play on a player bought in another country. Some people believe that region codes are an illegal restraint of trade, but no legal cases have established this. 

The world is split up into 8 DVD regions: 

Region 1: U.S., Canada, U.S. Territories
Region 2: Japan, Europe, South Africa, and Middle East (including Egypt)
Region 3: Southeast Asia and East Asia (including Hong Kong)
Region 4: Australia, New Zealand, Pacific Islands, Central America, Mexico, South America, and the Caribbean
Region 5: Eastern Europe (Former Soviet Union), Indian subcontinent, Africa, North Korea, and Mongolia
Region 6: China
Region 7: Reserved
Region 8: Special international venues (airplanes, cruise ships, etc.)


Old DVD-ROM drives came with a firmware level RPC-1. Software protection was used to control which region is played. 

New DVD-ROM drives come with a firmware level RPC-2 with hardware protection. RPC 2 drives have a 5 change limit on regions, once the counter gets to 0 your drive is permanently locked to the last region it was set to. Even if you reformat or move the drive to another system it will still be locked to the last region. There are ways to get around it, some models have resetting tools made by 3rd parties to reset the change limit back to 5 and some also have firmware patches to remove the region lock.

Now as far as solving the problem. Just follow the below instruction.
Windows keeps track of the DVD region and after its initial setting you are allowed to only change it once more. Its possible to reset the counter by performing the following registry change:

Start the registry editor (regedit.exe)

Move to HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft

There will be a subkey (the first) of a strange format, e.g. ';t-z% with a single REG_QWORD value

Select the key and delete

Restart the computer

Upon restart you should be able to modify the region again.

I don't think you need to modify as your DVD refional counter will start from 5.

That's it.
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