Sony VAIO VPCF12 Series - Manual (Page 45)

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Using Your VAIO Computer >
Using the Optical Disc Drive
Notes on region codes
Region code indicators are labeled on the discs or packages to indicate in which region and on what type of player you can
play the disc. If the region code indicates "all," you can play this disc in most regions of the world. If the region code for your
residence area is different from the label, you cannot play the disc on your computer.