Unique Panasonic digital signal processing technologies deliver true-to-life detail and color, with whiter whites, deeper blacks, and superb rendering of fine details such as individual strands of hair.

The Direct Linear Drive motor provides constantly moving inner blades with 13.000 rpm even when battery level is getting lower, or shaving thick hairs.

Dolby Digital is a form of digital audio coding which makes it possible to store and transmit high quality digital sound. This audio coding can be used for mono, stereo or multi-channel soundtracks. Dolby Digital 5.1 is a multi-channel system used by film producers to deliver five discrete (ie the signals for each channel are recorded independently), full range channels: front left, front right, front centre, left surround and right surround. The .1 refers to the Low Frequency Effects (LFE) channel which is purely for bass and is therefore not full range.

Dolby Pro Logic IIx lets you enjoy virtually any programme - music, radio, TV, etc - in surround sound. It converts any stereo or 5.1 sound signal into 6.1 or 7.1 channel output and creates a seamless, natural surround sound field. Dolby Pro Logic IIx also incorporates an exclusive Game mode that delivers full-impact special effects signals panned to the surrounds

Also know as Dolby pro-logic , this surround  format has been used for a long time  for the video media format. The center and rear signals are synthesized and recorded  into the 2 channel  stereo signals. A special decoder  is needed for play back.

This is the process of remixing the multi-channel audio found on some discs into fewer channels.

Digital Print Order Format allows the user to mark their recorded still images with printing instructions, such as which photos they want to print and how many copies are required. This makes it easier to get prints made at a photo laboratory or to print them at home.

DTS is digital surround system , used for CD,  and DVD. It uses  the same 5.1 channel configuration as Dolby Digital, but its lower  compression rate lends the sound greater depth, and improves  the inter -channel  characteristics  and signal to noise (S/N) ratio

DVD is capable of holding far more digital data than a CD. This data can include audio as well as video signals. DVD-Audio is the next generation audio format and can carry extremely high quality music. DVD-Audio can reproduce frequencies up to 192kHz - that's nearly five times higher than the average person can hear and while these ultra high frequency components are beyond our audible range they play a key part in conveying delicate musical nuances, venue ambience and soundstage imaging. In order to take advantage of music on DVD-Audio, you need a compatible DVD player.

Dynamic range describes the ratio of the softest sound to the loudest sound in a musical instrument or piece of electronic equipment. This ratio is measured in decibels (abbreviated as dB) units. Dynamic range measurements are used in audio equipment to indicate a component's maximum output signal and to rate a system's noise floor. As a reference point, the dynamic range of human hearing, the difference between the softest sound we can perceive and the loudest, is about 120 dB. Compressors, expanders, and noise gates are processing devices that are used in audio to alter the dynamic range of a given signal. This is done to achieve a more consistent sound when recording or as a special effect (by radically altering the dynamics of a sound, thereby creating a sound not possible from the original source).