As demand has increased for digital video storage, including high-definition (HD) video, and as the variety of video-systems configurations increases, Western Digital has expanded its line of hard drives for AV/DVR and surveillance applications to include small form factor, 2.5-inch SATA hard drives. The WD AV-25 hard drives provide high reliability with a Mean Time Between Failure (MTBF) of 1 million hours and are engineered specifically for demanding, always-on multimedia streaming applications, while running at cool and quiet temperatures. The hard drives also meet the requirements of the surveillance market by offering universal compatibility, low power consumption and the ability to simultaneously record multiple audio and/or high-definition video streams.