Hardware Reference
In-Depth Information
enables 3D Blu-ray Disc playback. They previously released support for 3D gaming on April 21,
2010 (followed by the availability of 3D movies). Since the version 3.70 software update in August
9, 2011, the PlayStation 3 can support DTS-HD Master Audio and DTS-HD High Resolution Audio
while playing 3D Blu-ray.
Note
Dolby TrueHD is used on a small minority of Blu-ray 3D releases, and bit-streaming is
supported by slim PlayStation 3 models only (fat PS3 models decode internally and send audio
as LPCM). It can play 3D Blu-ray content at full 1080p.
Figure 11.15
compares the track size and laser types used for CD, DVD, and standard BD media.
Figure 11.15. CD, DVD, and BD media and laser comparison.
Note
When a mixture of HD video and standard video is stored on a BD, you can store up to 2.25
hours of HD video and 2 hours of standard video (used for bonus features) on a single-layer
disc. A dual-layer BD can store up to 3 hours of HD video and 9 hours of standard video.
Capacities can also vary with bit rates used for movie storage because Blu-ray can support a
range of bit rates.
The BD specification includes the following formats:
•
BD-ROM
—Read-only for prerecorded content
•
BD-R
—Recordable
•
BD-RE
—Rewritable
•
BD-RE XL
—Rewritable
The data transfer speed of a BD depends on the speed rating of the drive and media. The practical
maximum rotational speed of an optical disc is 10,000 rpm, which limits the maximum speed of BD
