Disk reproduction device with improved multi-angle switching

摘要: The system controller sequentially reads the interleaved units (ILVU) corresponding to all angles store them in RAM as track buffer. When angle switching is instructed, ILVU after switching, out of block next which that was read at moment instruction from and a decoding object belongs to, controls reproduction. Further, when judges whether it possible replace before stored by while maintaining state reproduction image being not intermittent. replaceable, DVD RAM, thereby replaces ILVU. Thus, disk device achieves quick multi-angle operation.