Seagate has introduced new hard drives designed for optimal performance in digital video surveillance systems. The Seagate SV35.5 hard drive provides a number of key advantages for video surveillance environments over standard hard drives including: performance-tuned 140 MB/s sustained sequential data rates and ATA-7 streaming commands for high-speed transfers, enhanced caching capabilities and built-in error recovery for non-stop streaming, according to a press statement. With disk capacities from 250GB to 1TB, the Seagate SV35.5 hard drive offers flexible DVR design capabilities as a video surveillance DVR, network DVR, or for direct and network-attached JBOD video surveillance storage, the company said.