Comparison Between Dvd-Ram And Dvd-Rw/R; Available Dvd-Ram Discs - Hitachi DZMV100EAU Service Manual

(As of March 2000)
Video Video Video Video Video
Audio Audio Audio Audio Audio
Sub-picture Sub-picture Sub-picture Sub-picture Sub-picture
Data for control (Navigation pack) Data for control (Navigation pack)
Data for control (Navigation pack) Data for control (Navigation pack) Data for control (Navigation pack)
Multiplexing type Multiplexing type Multiplexing type
Multiplexing type Multiplexing type

2.3 Comparison between DVD-RAM and DVD-RW/R

In addition to DVD-RAM in rewritable DVDs, DVD-RW and DVD-R are also available.
The following table shows the differences in major specifications (Note 1) between these discs:
(As of April 2000,
investigated by Hitachi)
Capacity Capacity Capacity Capacity Capacity
(per side/both sides) (per side/both sides) (per side/both sides)
(per side/both sides) (per side/both sides)
Laser wavelength (NA) Laser wavelength (NA) Laser wavelength (NA) Laser wavelength (NA) Laser wavelength (NA)
Write rate Write rate Write rate
Write rate Write rate
Rewritable use Rewritable use Rewritable use Rewritable use Rewritable use
Cartridge Cartridge
Cartridge Cartridge Cartridge
Video recording standard Video recording standard Video recording standard Video recording standard Video recording standard
8-cm standard 8-cm standard
8-cm standard 8-cm standard 8-cm standard
Major applications Major applications Major applications Major applications Major applications
Note 1: Note 1: Note 1: The differences between media are shown: The drives of Hitachi and other companies and applied products also
Note 1: Note 1:
have individual specifications.
Note 2: Note 2:
Note 2: Note 2: Note 2: There are two types of DVD-RAM: Disc used only while it is in cartridge (Type 1) and disc can be removed from
cartridge (Type2).
2.4 Available DVD- RAM Discs
There are two types of DVD-RAM disc: for video camera and for PCs. Be sure to use 8 cm DVD-RAM discs (1.4 GB on one
side, 2.8 GB on both sides) noted for video camera use (for AV) with this DVD video camera/recorder.
Most discs for video camera use (for AV) can be removed from their cartridges for recording. Some discs for PC, however,
cannot be removed from their cartridges, and some can be removed but recording cannot be made on them. For details, read
the instruction sheet provided with discs or consult the disc maker.
Examples of discs that cannot be used on this DVD video camera/recorder: Examples of discs that cannot be used on this DVD video camera/recorder: Examples of discs that cannot be used on this DVD video camera/recorder: Examples of discs that cannot be used on this DVD video camera/recorder: Examples of discs that cannot be used on this DVD video camera/recorder:
8 cm DVD-RAM discs for PC, CD, DVD-ROM, DVD-Video, MO, MD, iD, floppy disks,etc.
Coding format Coding format Coding format Coding format Coding format
Number of streams Number of streams
Number of streams Number of streams Number of streams
Aspect ratio Aspect ratio Aspect ratio Aspect ratio Aspect ratio
Number of pixels (PAL) Number of pixels (PAL) Number of pixels (PAL) Number of pixels (PAL) Number of pixels (PAL)
Still image data structure Still image data structure Still image data structure
Still image data structure Still image data structure
Coding format Coding format Coding format Coding format Coding format
Number of streams Number of streams
Number of streams Number of streams Number of streams
Number of channels per Number of channels per Number of channels per Number of channels per Number of channels per
stream stream
stream stream stream
Coding format Coding format Coding format Coding format Coding format
Number of streams Number of streams
Number of streams Number of streams Number of streams
Display control command Display control command Display control command Display control command Display control command
DVD-RAM (4.7GB) DVD-RAM (4.7GB) DVD-RAM (4.7GB) DVD-RAM (4.7GB) DVD-RAM (4.7GB)
4.7 GB/9.4 GB
650 nm (0.6)
2X
at least 100,000 times
Provided (Note 2)
Conforming
Provided
For PC/AV
DVD Video Recording DVD Video Recording
DVD Video Recording DVD Video Recording DVD Video Recording
MPEG1/MPEG2
1 stream only
4 : 3 / 16 : 9
720 × 576, 704 × 576,
544 × 576, 480 × 576,
352 × 576, 352 × 288
I picture of one still
MPEG/Dolby AC3/Linear PCM
Up to 2
Mono/Stereo/Dual Mono/Multi
(up to 71 channels)
Run-length encoding
1 only
Sub-set of that at right
None
MPEG2 program stream
DVD-RW (4.7GB) DVD-RW (4.7GB) DVD-RW (4.7GB) DVD-RW (4.7GB) DVD-RW (4.7GB)
4.7 GB/-----
635 nm/650 nm (0.6)
1X
at least 1,000 times
None
Conforming
None
For AV
DVD Video (reference) DVD Video (reference)
DVD Video (reference) DVD Video (reference) DVD Video (reference)
720 × 576, 704 × 576,
352 × 576, 352 × 288
Not defined
Up to 8
Mono/Stereo /Multi (up to 71
channels)
Up to 32
Full set
Provided (essential)
DVD-R (4.7GB) DVD-R (4.7GB) DVD-R (4.7GB) DVD-R (4.7GB) DVD-R (4.7GB)
4.7 GB/-----
635 nm (0.6)
1X
only once
None
Non-conforming
Provided
For authoring software
E1 - 3