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HD Reporter

HD News, Blu-ray Disc Reviews
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HD-Reporter.de - Blu-ray Reviews in deutsch und englisch mit technischen Details wie Video-/Audio-Bitrate, Discgroesse, Video-/Audio-Codecs


Technology & Info

Blu-ray vs. DVD Specs
Features Blu-ray DVD
Disc sizes25 (23.28) GB single layer

50 (46.57) GB double layer

4.7 (4.37) GB single layer

8.5 (7.95) GB double layer

Picture formats16:9

4:3

4:3

16:9 anamorphic widescreen

Max. audio tracks328
Max. video streams99
Max. subtitles3232
Copy protectionAACS (128 Bit)

BD-ROM Mark

BD+

CSS (40 Bit)
Regional codingA Amerika, Asia (w/o China)

B Europe, Middle East, Afrika, Australia, New Sealand

C China, Russia, South East

R1 – R6
Resolutions- 1920 x 1080 – 1280 x 720

- SD-Formates

e.g. 1024 x 576 (anamorphic PAL)

e.g. 720 x 576 4:3 PAL

Max. video bitrate40 Mbit/s9.8 Mbit/s
Audio Formats Blu-ray vs. DVD
Audio Formats Blu-Ray DVD
other Audio formats- Linear PCM- Linear PCM

- MPEG 1 & 2

Dolby Digital: (6 Channels)max. 640 kbpsmax. 448 kbps
Dolby Digital Plus: (8 Channels)max. 1.7 Mbpsnot available
Dolby TrueHD (lossless)

(up to 24 Bit/96 kHz, 8 Channels)

max. 18 Mbpsnot available
DTS-HD High Resolution Audio (CBR)

(up to 24 Bit/96 kHz, 8 Channels)

max. 6 Mbpsnot available
DTS-HD Master Audio (lossless)

(up to 24 Bit/96 kHz, 8 Channels)

max. 24,5 Mbpsnot available
DTS 96/24 (24 Bit/96 kHz, 6 Channels)1509 kbps1509 kbps
DTS (ES) (7 Channels)754,5 & 1509 kbps754,5 & 1509 kbps
Max bitrate (inkl. all streams)48 Mbit/s11.08 Mbit/s
CBR = constant bit rate

lossless = bit-for-bit identical to the studio master

DTS HD Master Audio always includes standard DTS core signal for

playback on non HD Master Audio capable equipment

Codec Comparison:
Function SMPTE VC-1 AVC / MPEG-4 MPEG-2
Intra-PredictionCoefficients in the frequency domain4 × 4 spatial
16 × 16 spatial
DC-Prediction

per macro block

Picture Coding TypeFrame

Field

Progressive

Picture adaptive Frame/Field

Frame

Field

Picture adaptive

Frame/Field

Makroblock adaptive Frame/Field

Frame

Field

Picture adaptive

Frame/Field

Block size for motion compensation16 × 16

16 × 8

8 × 16

8 × 8

8 × 4

4 × 8

4 × 4

16 × 16

16 × 8

8 × 16

8 × 8

8 × 4

4 × 8

4 × 4

16 × 16

16 × 8

8 × 16

Motion vector precisionFull Pel

Half Pel

Quarter Pel

Full Pel

Half Pel

Quarter Pel

Full Pel

Half Pel

Entropy

encoding

adaptive VLC (variable length coding)CAVLC (context adaptive variable length coding)

CABAC (context adaptive binary arithmetic coding)

VLC (variable length coding)
Transformationapproximative, integer DCT with following block sizes 8 × 8

8 × 4

4 × 8

4 × 4

approximative, integer DCT with following block sizes

8 × 8

4 × 4

8 × 8 Discrete Cosinus Transformation (DCT)