Frequently asked questions

What is a DVD
Media type: Optical disc
Capacity:
~4.7 GB (single-sided single-layer)
 ~8.54 GB (single-sided double-layer)
Usage: Data storage, audio, video, games

What is a Blu-ray Disc
Media type: High-density optical disc
Encoding: MPEG-2, MPEG-4 AVC (H.264), and VC-1
Capacity: 25 GB (single layer), 50 GB (dual layer)
Usage: Data storage,High-definition video,and PlayStation 3 games

What is a HD DVD or High-Definition DVD.
Media type: High-density optical disc
Encoding: VC-1, H.264, and MPEG-2
Capacity:
15 GB (single layer)
30 GB (dual layer)
Usage: Data storage,high-definition video