Jelaskan Hi-MD dari Cakram optik dalam bahasa sunda

Third-generation optical discs are in development, méant for distributing high-definition video and support gréater data storage capacities, accomplished with short-wavelength visible-light lasers and gréater numerical apertures. The Blu-ray disc uses blue-violet lasers of gréater aperture, for use with discs with smaller pits and lands, thereby gréater data storage capacity per layer. In practice, the effective, multimedia presentation capacity is improved with enhanced vidéo data compression codecs such as H.264, and VC-1.