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 MAM DVD-R
Specifications, Performance |
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MAM DVD-R :
The Best Performing DVD-R |
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 DVD-R general specifications
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Parameter
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DVD-R
General Specifications
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| Storage capacity |
4,7 GB
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| Disc Diameter |
120 mm
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| Disc Thickness |
1,2 mm
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| Substrate |
Polycarbonate
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| Recording Material |
Organic dye
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| Reflective Layer |
Silver
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| Recording Wavelength |
650 nm
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| Reading Wavelength |
650 nm (635 nm)
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MAM DVD-R
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Parameter
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MAM
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Book D Specifications
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| Reflectivity |
50%
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45 to85%
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| Optimum
recording power |
10mW
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6 to12 mW
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| l 14/l 14H |
0,65
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>0,60
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| l 31/l 14 |
0,25
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>0,15
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| Jitter |
7,5%
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< 8%
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| PI Error |
< 100
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< 280
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Performance
of MAM DVD-R
MAM Media Durability
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The paramaters
of CD & DVD |
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Parameter
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DVD
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CD
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| Disc diameter |
120mm
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120mm
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| Disc thickness |
1.2mm
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1.2mm
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| Disc structure |
Two bonded 0.6 mm substrates
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Single substrate
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| Laser wavelength |
650
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780nm (infrared)
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| Numerical aperture |
0.60
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0.45
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| Track pitch |
0.74m
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1.6m
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| Shortest pit/land
length |
0.4m
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0.83m
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| Data layers |
1 or 2
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1
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| Data Capacity |
Single layer 4.7 GB
Double layer 8.5 GB
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Approx. 680 MB
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| Reference user
data rate |
1.108 GBps nominal
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Mode1: 153.6KBps
Mode2: 176.4KBps
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| Data bit rate |
Max. total of combined audio and video=
9.8 Mbps
Max. sum of Elementary streams + system overhead
=11.08 Mbps (1X DVD)
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1.44Mbps (video,audio)
1X vitesse CD)
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| Video compression |
MPEG-2
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MPEG-1
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| Sound Tracks |
Mandatory (NTSC): 2-channel linear PCR
and/or 2-channel Dolby Digital (AC-3).
Optional: up to 8 streams of data available
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2 Channel-MPEG
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| Subtitles |
Up to 32 Languages
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Open caption only
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Error Correction
Frame rate |
Reed Solomon Product Code
25 Hz frames per sec
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| Aspect ratio |
4:3, 16:9
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| Audio |
Dolby AC-3 sampling rate 48 Khz
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| Video buffer size |
1.85 Mb (MPEG-2)
328 Kb (MPEG-1)
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Difference between
CD and DVD |
Looking at the pictures, you can see the fundamental differences between
a CD and a DVD.
This is a comparison between a standard CD and a single layer DVD.
Because the "pits" are smaller and closer together, DVD has a higher density
so it can include
more data. These physical differences account for most of the
capacity increase, although improved error correction and slightly
larger usable surface area make up the rest. The difference in
density between CD and (single sided) DVD is approximately 7.2
(4.7/.650) .
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