1
00:00:00,080 --> 00:00:01,760
Digital versatile Discs.

2
00:00:02,300 --> 00:00:04,010
Digital Versatile discs.

3
00:00:04,010 --> 00:00:05,000
DVDs.

4
00:00:05,030 --> 00:00:09,500
Although the same size in diameter can store much more data than CDs.

5
00:00:10,070 --> 00:00:13,640
Diameter 120mm.

6
00:00:13,640 --> 00:00:14,720
Same as a CD.

7
00:00:15,530 --> 00:00:17,690
Type of laser used to write data.

8
00:00:17,720 --> 00:00:28,970
650 NM Red laser maximum capacity of a DVD 4.7GB GB and 15.9GB Dual layer DVD.

9
00:00:29,570 --> 00:00:32,480
The various types of DVDs are as follows.

10
00:00:32,960 --> 00:00:36,830
Digital Versatile Disc Read only Memory DVD.

11
00:00:37,700 --> 00:00:42,830
The DVD comes with data already written to it, much like a CD or album.

12
00:00:43,550 --> 00:00:47,480
Digital Versatile Disc Recordable Dvd-r.

13
00:00:47,780 --> 00:00:50,510
Data can be written once to the DVD.

14
00:00:51,020 --> 00:00:54,920
Digital Versatile Disc Plus Recordable Dvd-r.

15
00:00:55,220 --> 00:00:57,950
Data can be written once to the DVD.

16
00:00:58,610 --> 00:01:03,900
Your DVDs utilize a more advanced error detection and management technology.

17
00:01:03,930 --> 00:01:07,080
Digital Versatile Disc Rewritable DVD.

18
00:01:07,110 --> 00:01:11,370
RW data can be written to the DVD several times.

19
00:01:11,400 --> 00:01:19,920
The DVD or Du disc differs from the Dvd-r disc in that the DVD RW disc may be written to a bit faster

20
00:01:19,920 --> 00:01:24,030
and may also be compatible with a larger variety of DVD players.

21
00:01:24,360 --> 00:01:29,520
Digital Versatile Disc Recordable dual layer DVD DL.

22
00:01:29,670 --> 00:01:38,100
The DVD contains dual layers resulting in higher storage capacities of between 7.95GB on a DVD, nine

23
00:01:38,640 --> 00:01:41,910
disk, and 15.9GB on a DVD.

24
00:01:41,940 --> 00:01:52,230
18 Disc Digital Versatile Disc Recordable dual layer DVD DL Same as the DVD or DL, but has been argued

25
00:01:52,230 --> 00:01:56,400
as having a more efficient format resulting in fewer errors.

26
00:01:56,790 --> 00:01:58,650
Digital Versatile Disc.

27
00:01:58,650 --> 00:01:59,730
Random Access.

28
00:01:59,730 --> 00:02:00,270
Memory.

29
00:02:00,300 --> 00:02:07,790
DVD ram Mainly used in video recording equipment due to its resiliency lasting up to two decades and

30
00:02:07,790 --> 00:02:10,100
the ability to rewrite data onto it.

31
00:02:10,130 --> 00:02:17,360
This disc is more expensive than other DVD formats and is also not compatible with many common DVD drives

32
00:02:17,360 --> 00:02:18,320
and players.