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A hard disk recorder (HDR) is a system that uses a high-capacity hard disk to record digital audio or digital video. Hard disk recording systems represent an alternative to reel-to-reel audio tape recording and video tape recorders , and provide non-linear editing capabilities unavailable using tape recorders.
A hard disk drive was added as an optional recording medium to AVCHD specification shortly after the new video standard had been announced. [16] Presently, capacity of built-in HDDs ranges from 30 GB to 240 GB. Pros: Higher capacity than other media types, which allows for longer continuous recording. Cons: Sensitive to atmospheric pressure.
Optical disc authoring, including CD, DVD, and Blu-ray Disc authoring, is the process of assembling source material—video, audio or other data—into the proper logical volume format to then be recorded ("burned") onto an optical disc (typically a compact disc or DVD).
Brasero, a GNOME disc burning utility; dvd+rw-tools, a package for DVD and Blu-ray writing on Unix and Unix-like systems; K3b, the KDE disc authoring program; Nautilus, the GNOME file manager (includes basic disc burning capabilities) Serpentine, the GNOME audio CD burning utility; Xfburn, the Xfce disc burning program; X-CD-Roast
The Zone-CLV recording strategy is easily visible after burning a DVD-R. Zoned constant linear velocity (ZCLV or Z-CLV) is a modification of CLV for high speed CD and DVD recorders where a constant linear velocity is maintained until the next zone, when the speed is stepped up. Early model recorders were CLV drives.
The video signal was stored as an analog format like a video cassette. The first digitally recorded optical disc was a 5-inch audio compact disc (CD) in a read-only format created by Sony and Philips in 1975. [53] The first erasable optical disc drives were announced in 1983, by Matsushita (Panasonic), [54] Sony, and Kokusai Denshin Denwa (KDDI ...
Unlike early CD-ROM drives, optical disc recorder drives have generally used industry standard connection protocols. Early computer-based CD recorders were generally connected by way of SCSI; however, as SCSI was abandoned by its most significant users (particularly Apple Computer), it became an
Disc quality: optical disc recorders detect the available speed options based on the data which is available on the disc itself. However, some low-quality discs make a high-speed option available to the software, while the burning process can never reach that speed in practice. The reading and writing process may not happen at a steady speed.