A DVD burner, also called a DVD writer, uses a laser beam to copy information from the computer onto blank DVDs. It is usually backward-compatible, which means that it can also record on earlier formats such as CDs. Unlike a standalone DVD recorder, it uses the computer’s processor and system resources to operate. It can also read and write data in computer format, which a DVD recorder cannot do. However, most models only record from the computer’s hard drive, while a DVD recorder can record directly from DVDs and other removable media.
An internal DVD burner is installed in a drive bay in the computer case, usually above the floppy drive. It is powered by the computer's power supply. It is usually designed for semipermanent installation, which makes it difficult to transfer to other computers.
External DVD burner
An external DVD burner is housed in a separate box that plugs into the computer’s USB or FireWire port. It is generally portable and compatible with most computers. It can be powered by the computer’s power supply or an external power source.
Dual layer copying: Choose a DVD burner that supports dual layer copying, which allows you to burn the trailer and special features when recording DVD movies.\
Burning speed: Choose a DVD burner with a speed of at least 18x to burn a DVD disc in just two minutes or less.
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