Yamaha DRX-2 - Manual (Page 14)

9 Introduction
1.
Introduction
What is a DVD?
DVD (Digital Versatile Disc) is a new storage medium that combines the convenience of
the compact disc with the latest digital video technology. DVD video uses modern
MPEG2 data compression technology that enables an entire feature film to be stored
on a single five inch disc.
How good is the resolution of DVD compared with VHS?
The razor-sharp digital images have a resolution of more than 500 lines of 720 pixels
per line. This is more than twice as high as VHS and is even better than the laser disc. Its
picture quality is easily comparable to the digital masters produced in recording studios.
What can DVD+RW do?
DVD+ReWritable uses phase change media, the same technology on which rewritable
CDs are based. A high-performance laser is used to change the reflective properties of
the recording layer; this process can be repeated more than a thousand times.
What can the DVD+R do?
DVD+R (write-once DVD). Unlike a DVD+RW disc, this disc can only be written once.
If it is not finalized after a recording, further recordings can be added to it. Old record-
ings can be deleted but can no longer be overwritten. The deleted titles are marked
“Deleted title”.
Before this disc can be played in a DVD player, it must be finalised in the DVD recorder.
Once this process is complete, no further recordings can be added.
What can my DVD recorder do?
Your DVD recorder is a machine for recording and playing back digital video discs with
“two-way” compatibility with the universal DVD video standard. This means:
•) existing DVD video discs can be played on the recorder.
•) Recordings made on your DVD recorder can be played on other DVD video players
and DVD ROM drives.
Common questions