Direct-to-disk recording

Direct-to-disk recording (DDR) refers to methods by which analog signals and agenda signals such as agenda audio and agenda video are digitally recorded to optical disc recording technologies such as DVDs, and CD optical discs . Alluring accumulator includes adamantine drives (HDD), alluring band such as video band and is altered than beam memory.

Generally these accessories accept the adeptness to catechumen analog signals into computer files.

Direct to deejay can absorb abiding or semi-permanent non-volatile anamnesis recording media. Computer adamantine deejay drives are accidental access, erasable and rewritable non-volatile recording accessories but accept been referred to as "permanent" by some manufacturers of absolute to deejay systems.

Audio recording

In 1982, New England Agenda offered an alternative adamantine deejay recorder amalgamation for their Synclavier which accustomed agenda recording of connected 16-bit 50 kHz audio absolute to a adamantine drive. This was the aboriginal agenda absolute to deejay audio recorder accessible commercially.1 Stereo audio was not anon accessible due to abstracts ascribe and achievement limitations on adamantine drives of that time.

Today, a majority of agenda audio recording is preserved on adamantine deejay drives.

Video recording

Types:

Consumer: From camcorders to agenda video recorder (DVR) and set top box models like TiVo to claimed computer based recorders.

High-end customer – Pro: non-linear alteration (NLE) systems like Avid Technology video alteration systems, to high-end tapeless camcorders

Able portable: For recording television productions/filmmaking in the acreage with able video cameras in agenda cinematography for agenda cinema productions.

Able television studio: From baby systems able to almanac 2 hours to Large multi anchorage playout systems with a 100 hours of rec/play time

edit Consumer

Miniaturization of recording and accumulator technology for customer video already allows the non-professional user to anon almanac home movies to a abiding accumulator average like DVD.2

DDRs are boring replacing Consumer: Magnetic band based DV, Digital8, 8mm Video Format, VHS and MicroMV video band recorders.

edit Able portable

Able recording accessories application DtD transfers is alpha to appear. In April 2006, Seagate appear the aboriginal able Direct-To-Disc accurate camera aimed at the absolute film-maker (using their disc drives).3

Infinity Series by Grass Valley

Infinity Agenda Media Camcorder – Infinity Agenda Media Recorder

REV PRO Agenda Media Drive-REV PRO Removable Media

edit Able studio

Able television flat DDRs video servers are actuality acclimated to alter video band recorders (VTR)s and VTR Cart machines, that playout television commercials and TV shows. Agenda audio workstations (DAW) are acclimated in able audio recording studios

The Media Pool (1994)- Deejay Recorder by Broadcast Television Systems Inc. (BTS) was the first4 Able Flat DDR. Received the Outstanding Achievement in Technical/Engineering Development Awards from National Academy Of Television Arts And Sciences in 2000–2001 for Pioneering developments in aggregate video-data accumulator systems for use in television video servers - Philips/Thomson.

Profile from Tektronix Models: PDR200-(1996), PDR300, PDR400

Quantel:

sQ Class of Servers and sQ Clients

Grande Vitesse Systems (GVS):

Profile GVS9000 2XU Pro, GVS9000 1XU Pro, GVS90000 7XU and added models of DDRs

Nomadic 1U 12xPro 24 hrs Uncompressed 10-bit 1080p Media Storage

Metropolis Media Servers

9000CTR Dual Uncompressed HD Controller

Grass Valley:

Profile PVS3000, PVS3500 and added models of DDRs

K2 Media Servers and Media Clients

Profile XP Video Servers

Profile XP Open SAN System

M-Series able video agenda recorder (iVDR)

Turbo able agenda deejay recorders (iDDRs)

Rave/SpectSoft

RaveHD

Rave2K

Digitale Videosysteme (DVS):

DVS Clipster DDR

DVS 2K Pronto DDR

CarbonHD agenda deejay recorder

The Agenda video is stored on a accumulator breadth arrangement (SAN) adamantine deejay array.

Each year adamantine deejay accumulator accommodation gets beyond and is able to authority hours of movies on Tera Byte systems.

Advantages of DDR over tape

Quicker into the non-linear alteration systems: no charge to digitise

The adamantine disks can abundance added than best video tapes

Tapes and VTRs are big-ticket to advance for the college video abstracts rates

Disadvantages of DDR over tape

    Hard disks are more expensive than video tapes
    Hard disks fail more frequently than video tapes
    Not practical to store a bank of hard drives for long term video storage.
Adamantine disks are added big-ticket than video tapes

Adamantine disks abort added frequently than video tapes

Not applied to abundance a coffer of adamantine drives for continued appellation video storage.