Compaq PRESARIO Presario 2700 User Manual page 66

Using the CD or DVD Drive
S
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DVD drive five times. The fifth setting change you make becomes
the permanent region on the player. Each time you make a change
to the drive's region setting, the remaining number of changes
allowed on the DVD drive is displayed.
5–12
You can only change the region code for the
Mobile Internet PC User's Guide
Presario 2700 Series