User manual WESTERN DIGITAL AV DATASHEET

[. . . ] CE Hard Drives WD AV Hard Drives Reliable Cool and Quiet Compatible Designed for demanding audio and video environments. · Long-Term Reliability ­ With a MTBF of 1 million hours, these drives are designed to last in high temperature always-on streaming digital audio/video environments such as PVR/DVR, DVR recorders, and surveillance video recorders. [. . . ] · Compatible ­ Tested for compatibility in a broad range of AV products including set top boxes, DVD recorders, and mainstream surveillance systems. Technology Features SilkStreamTM ­ Optimized for smooth, continuous digital video playback of up to twelve simultaneous HD streams. ** SilkStream is compatible with the ATA streaming command set allowing CE customers to use standard streaming management and error recovery options. IntelliSeekTM ­ Optimizes seek speeds to lower power consumption, noise and vibration. Ramp Load ­ Parks the recording heads off the disk surface during spin up, spin down, and when the drive is off. This ensures the recording head never touches the disk surface resulting in improved long term reliability due to less head wear, and improved non-operational shock tolerance. Preemptive Wear Leveling (PWL) ­ The drive arm frequently sweeps across the disk to reduce uneven wear on the drive surface common to audio video streaming applications. [. . . ] WD AV SATA and EIDE drives are ideal for PVR/DVR, DVD recorders, surveillance video recorders, and other video streaming applications. *A sone is a subjective unit of loudness as perceived by a person with normal hearing. [. . . ]