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To support the understanding of the topic, we offer an animation of the inner workings of a DVD-R:
Figure 1. Animation inner workings of a DVD-R (Courtesy of InformaticaModerna.com) + The unit opens and closes
the tray either by the user for the button that is assigned to it or
from the computer software.
A device that mounts in 5.25 "cabinet, basically integrates within itself a special laser beam emitter to read and write data to a CD (" Compact Disc ") and a DVD (" Digital Versatile Disc ") and a motor to rotate the disc tray and place. Such units can receive data from the computer to burn discs and sends data that is read from a CD or DVD, using a cable to main Board (Motherboard). |
The DVD recorder competes against the CD recorder, DVD recorder and external Blu-ray recorder.
Figure 2. Recordable DVD's, LG ® brand, model GH-22, 22X speed, IDE interface.
Features
of the DVD burner |
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+ Basically the
unit size is 120 mm disc. so you have a large size.
+ All rooms on its face with a button to enter and leave the disc in the tray, an LED read / write and a small hole to unclog the tray. + The new devices should preferably maintain compatibility with previous similar technologies, so the DVD recorder also written to the CD-ROM. + They have in the tray space for read / write DVD and CD of 120 mm. and 80 mm. + These units begin to be replaced by the new format recorders drives: BD recorders (Blu-ray Disc). |
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Parts of
the DVD burner |
Shows two schemes, one of the internal parts and other external parties:
Figure 3. Diagram of outer parts of a DVD burner |
1. - Tray and cover:
allows support disk and place it correctly to be read and recorded
by the laser procedure. Parts and functions of the external parts of a DVD burner. |
|
Figure 4. Schematic of basic internal parts of a DVD burner
|
1. - Cover the pan:
it gives aesthetic unity. Parts and functions of the basic internal parts of a DVD burner. |
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Power
connectors |
a) Connector SATA: is the latest type to be integrated into these units. The most modern ATX sources already include these connectors, but in case of not having one, you can use an adapter.
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Figure 5. SATA power connector. |
Electrical terminals of the SATA power connector. |
b) 4-pin connector: MOLEX type also called, is the most common connector units DVD recorders, so you only need an ATX power supply and even being able to use an AT power supply to supply power without problem.
 Figure 6. MOLEX power connector for IDE / ATAPI. |
 Figure 7. Diagram of the power connector for IDE / ATAPI. |
Electrical terminals of the power connector for IDE / ATAPI. |
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Data connectors |
a) SATA Connector: located in the rear of the unit and is the
latest guy who built them. This is attached by a cable to the main
board ("motherboard") that the best must be modern to include these
connectors, so do not recommend this type of DVD recorders on non
are too new.
|
Figure 8. SATA data connector. |
Figure 9. SATA data cable. |
1. - GND (Earth) Electrical terminals of the SATA data connector. |
b) Connector IDE ("Integrated Electronic Device") - ATAPI ("Advanced Technology Attachment Packet Interface"): is in the back of the unit, here is inserted a cable IDE 40 terminals, which supports 2 drives connected. This in turn is connected to the main board for sending data.
The DVD units have recorded another small connector used for certain digital signal from the unit, called S / PDIF ("Sony / Philips Digital InterFace"), which has 4 pins and also connects to the mainboard.
|
Figure 10. IDE connector for data. |
 Figure 11. IDE data cable. |
 Figure 12. Digital signal connector on the rear panel. |
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Setting up the DVD
recorder |
a) Units SATA DVD burners type: For SATA drives, has no physical pin configuration, since a cable only supports a DVD burner, so there are no masters or slaves devices.
b) Drives IDE DVD burners type: In the back of the drives IDE type DVD burners, also integrates a set of pins to configure the unit, this is because the 40-pin cable is also used by the IDE and have to determine which device is the one with the priority within the system.
+ "Master" or teacher: the device will have the priority should be placed the "jumpers" or bridges according to the table next to the product label. It can be a hard drive or any other optical drive, but can never be 2 teachers.
+ "Slave": is the device with lower priority within the system, you must place the "jumpers" or bridges according to the table next to the product label. You can be the hard drive or any optical drive, but can never be 2 slaves.
Note: If only one device, this should always be a teacher.
| Diagram of Back Panel | Schematic configuration of the label |
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Figure 13. On the rear panel there is a special section to select the type of unit, so by means of a piece that "bypasses" the pins called "Jumper". |
Figure 14. The diagram shows that S is selected (this means that selected slave) so the other unit to be connected to the same cable must be M (master). |
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Data
transfer rate |
The unit of measurement for maximum data transfer is X, is currently up to 24X, this in turn suggests 2 things:
| X = 150 Kilobytes/second (KB/sec) | X = 1 revolution by second |
+ Example: DVD burner, HP brand, model DVD1040i, 20X LightScribe, it means:
|
a) that has the ability to rotate a DVD at the time of recording up to 20 revolutions per second for writing data at a transfer rate: 20 * (150 KB / s) = 3,000 KB / s or 3 Megabytes / second (MB / s). |
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b) Other specifications are as
follows, but in this case the burner and are treated as
secondary, being the highest priority which correspond to the
DVD recorder:
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The
technology "LightScribe" |
|
Figure 15. Disc labeling technology with "LightScribe", as seen only handles a range of coffees. |
("LightScribe") means writing with light. Is related to the ability of a certain type of discs at its upper face possible "serigrafiarlo" to a single color with the same laser "burner" and saving avoiding the use of adhesive paper labels. It is noteworthy that this requires that the drive supports this feature, the disc is special for this technology and use the appropriate software.
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Disc
formats for DVD recorder |
You can write the following formats (DVD ± refers to the 2 different formats that exist: the most common DVD-and the less common DVD +):
+ DVD ± ROM ("Digital
Versatile Disc Read Only Memory ±") are 120 mm discs. in diameter and
contain recorded data with a capacity of 4.7 gigabytes (GB).
+ Mini DVD ± ROM ("mini Digital Versatile Disc Read Only
Memory ±") are disks of 80 mm. in diameter and contain data recorded
with 1.4 GB capacity.
+ DVD ± RW ("Digital Versatile Digital ± ReWrittable") are 120
mm discs. in diameter that can be recorded, erased and rewritten by a
DVD recorder, with capacities of 4.7 GB.
+ Mini DVD ± RW ("mini ± Rewrittable Digital Versatile Disc")
is 80 mm discs. in diameter that can be recorded, erased and rewritten
by a DVD recorder, with capacities of 1.4 GB.
+ DVD ± R DL ("Digital Versatile Disc Recordable Double Layer
±") are 120 mm discs. in diameter that can be recorded, erased and
rewritten by a DVD recorder, with capacities of 8.4 GB.
+ DVD-RAM ("Digital Versatile Disc Read Aleatory ± Memory")
are disks of 80 mm. in diameter that can be recorded, erased and
rewritten by a DVD recorder without the need for special programs like
Nero ®, Ashampoo ® or Roxio ®. Supports capacities up to 9.4 GB.
You can read the following format (CD):
+ CD-ROM ("Compact
Disc-Read Only Memory") are 120 mm discs. in diameter and contain
recorded data with capacities of 540 megabytes, 650 MB, 700 MB and 870
MB.
+ MiniCD-ROM ("miniCompact Disc-Read Only Memory") are disks
of 80 mm. in diameter and contain data recorded with capacities of 200
MB.
+ CD-RW ("Compact Disc-ReWrittable") are 120 mm discs. in
diameter that can be recorded, erased and rewritten through a CD, with
capacities of 700 MB.
MiniCD +-RW ("miniCompact ReWrittable Disc") is 80 mm discs. in diameter
that can be recorded, erased and rewritten through a CD, with capacities
of 200 MB.
You can write the following CD formats:
+
CD-R ("Compact Disc-Recordable") are 120 mm discs. in diameter with
no recorded data and have capacities of 540 megabytes, 650 MB, 700 MB
and 870 MB.
+ MiniCD-ROM ("miniCompact Disc-Recordable") are disks of 80
mm. in diameter with no recorded data and have the capacity of 200 MB.
+ CD-RW ("Compact Disc-ReWrittable") are 120 mm discs. in
diameter that can be recorded, erased and rewritten through a CD, with
capacities of 700 MB.
+ MiniCD +-RW ("miniCompact ReWrittable
Disc") is 80 mm discs. in diameter that can be recorded, erased and
rewritten through a CD, with capacities of 200 MB.
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Specific
uses of the DVD |
They are used for writing and recording of information in CD format ("Compact Disc") and DVD ("Digital Versatile Disc").
It is projected that these units will be replaced by the next generation: BD recorders ("Blu-ray Disc"), which integrate reading and writing CD / DVD (because it must be compatible with previous similar devices) also reading and writing Blu-ray and even HD-DVD reading.
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Links to related topics |
Blu-ray Recorder / Combo Drive / DVD Recorder External /
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