Owner's Manual
Page 22
... rated DVD based on their content. (Not all discs are rated.) [Rating 1-8] Rating one (1) has the most restrictions and rating eight (8) is the least restrictive. [Unlock] If you select [Unlock], parental control is not active and the disc plays in Stop mode for BD-ROM viewing.
... rated DVD based on their content. (Not all discs are rated.) [Rating 1-8] Rating one (1) has the most restrictions and rating eight (8) is the least restrictive. [Unlock] If you select [Unlock], parental control is not active and the disc plays in Stop mode for BD-ROM viewing.