A write-once optical disc in the Blu-ray Disc family. Among 12 cm optical media, BD-R offers the largest storage capacity — approximately 25 GB per layer and 50 GB in dual-layer form. Its capacity far exceeds that of CD-R and DVD-R, making it suitable for recording high-definition video and for data backup purposes.

Past questions testing this term · 1 questions

• 2016h28a #56次の記憶媒体のうち，記録容量が最も大きいものはどれか。ここで，記憶媒体の直径は12cmとする。