TimeSight 's Analog Camera Environment ( ACe ) feature brings plug-n-play capability for existing analog cameras into an NVR , with better image quality and longer retention than currently possible on most DVRs , in a small , economical footprint . This new intelligent encoding feature converts video streams from legacy analog cameras into fully digitized network video streams leveraging surveillance-optimized H.264 digital video format . ACe technology allows users with a significant investment in analog CCTV systems to migrate into a fully functional IP based video network and benefit from the practice of VLM .