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گزيده هاي
تصويري (
سينمايي و
خبري) |
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DVD
پيشرفته
DVD for Advance
DVD stands for Digital
Versatile/Video Disc, DVDR stands for DVD Recordable and DVDRW
for DVD ReWriteable. If you're familiar with regular
audio/music CDs or regular DVD-Video discs, then you will know what a
recordable DVD looks like. A recordable DVD stores up to 2 hours of very good
quality DVD-Video, including several audio tracks in formats like stereo, Dolby
Digital or DTS and also advanced menu systems, subtitles and still pictures
that can be played by many standalone DVD Players and most computer DVD-ROMs.
If you choose to lower the video quality it is possible to store several hours
video on a recordable DVD using low bitrates and low resolution with video
quality more like VHS, SVHS, SVCD, CVD or VCD. It is also possible to have up to
4.37* GB ordinary data or
mix DVD-Video and data on a recordable DVD that can be played by most computer
DVD-ROMs.
There are three competing DVD Recording standards, DVD-R/DVD-RW and DVD+R/DVD+RW have
pretty similiar features and are compatible with many
standalone DVD Players and most DVD-ROMs while DVD-RAM has less DVD Player and DVD-ROM
compatibility but better recording features.
DVD-R and DVD-RW
DVD-R was the first DVD recording format released that was compatible with
standalone DVD Players.
DVD-R is a non-rewriteable format and it is compatible with about 93%
of all DVD Players and most DVD-ROMs.
DVD-RW is a rewriteable format and it is compatible with about 80%
of all DVD Players and most DVD-ROMs.
DVD-R and DVD-RW supports single side 4.37 computer GB* DVDs(called
DVD-5) and double
sided 8.75 computer GB*
DVDs(called DVD-10).
These formats are supported by DVDForum.
DVD+R and DVD+RW
DVD+R is a non-rewritable format and it is
compatible with about 89%
of all DVD Players and most DVD-ROMs.
DVD+RW is a rewritable format and is compatible with
about 79%
of all DVD Players and most DVD-ROMs.
DVD+R and DVD+RW supports single side 4.37 computer GB* DVDs(called
DVD-5) and double
side 8.75 computer GB*
DVDs(called DVD-10).
These formats are supported by the DVD+RW Alliance.
DVD+R DL
DVD+R DL or called DVD+R9 is a Dual Layer writeable DVD+R. The dual layered discs
can hold 7.95 computer GB*
(called DVD-9) and
dual layered double sides 15.9*
computer GB (called dvd-18).
DVD-R DL
DVD-R DL or called DVD-R9 is a Dual Layer writeable DVD-R. The dual layered discs
can hold 7.95 computer GB*
(called DVD-9) and
dual layered double sides 15.9*
computer GB (called dvd-18).
DVD-RAM
DVD-RAM has the best recording features but it is not compatible with
most DVD-ROM drives and DVD-Video players. Think more of it as a removable hard
disk. DVD-RAM is usually used in some DVD
Recorders.
This format is supported by DVDForum.
Read our DVD Writers and
Recorders list and read also our DVD Players Compatibility list
to see what types your standalone DVD Player supports. You find more detailed comparisons
between the formats in the more
info section here.
The DVD sizes can be a bit confusing. There are basicly
4 different DVD Sizes,
DVD-5,
holds around 4 700 000 000 bytes and that is 4.37
computer GB where 1 kbyte is 1024 bytes* .
DVD+R/DVD+RW and DVD-R/DVD-RW supports this format. Also called Single Sided Single Layered. This is the most common DVD Media,
often called 4.7 GB Media.
DVD-10,
holds around 9 400 000 000 bytes and that is 8.75
computer GB. DVD+R/DVD+RW and DVD-R/DVD-RW supports
this format. Also called Double Sided Single Layered.
DVD-9,
holds around 8 540 000 000 bytes and that is 7.95
computer GB. DVD+R supports this format. Also called Single Sided Dual Layered. This media is called DVD-R9, DVD-R
DL, DVD+R9, DVD+R DL or 8.5 GB Media.
DVD-18,
holds around 17 080 000 000 bytes and that is 15.9
computer GB. DVD+R supports this format. Also called Double Sided Dual Layered.
* In the computer world is
1 KB data = 1024 bytes so 4 700 000 000 bytes / 1024
= 4 589 843KB / 1024 = 4482MB / 1024 = 4.37GB. See section
3.3 in the DVDDemystified FAQ here.
DVD+R/DVD+RW/DVD+R
DL and DVD-R/DVD-RW exact sizes
DVD-R/DVD-RW = 4 706 074 624 bytes ( 4488 MB )
DVD+R/DVD+RW = 4 700 372 992 bytes ( 4482 MB )
DVD+R DL = 8 547 993 600 bytes ( 8152 MB )
Single Layer(4.7GB)
write speeds
1x (CLV) = about 58 minutes
2x (CLV) = about 29 minutes
2.4x (CLV) = about 24 minutes
4x (CLV) = about 14.5 minutes
6x (CLV/ZCLV) = about 10-12 minutes
8x (PCAV/ZCLV) = about 8-10 minutes
12x (PCAV/ZCLV) = about 6.5-7.5 minutes
16x (CAV/ZCLV) = about 6-7 minutes
Dual/Double
Layer(8.5GB) write speeds
1x CLV = about 105 minutes
2.4x CLV = about 44 minutes
4x CLV = about 27 minutes
Single Layer (4.7GB)
read speeds
1x read speed is 1.321MB/s = ~56 minutes
6x CAV (avg. ~4x) read speed is max 7.93MB/s = ~14 minutes
8x CAV (avg. ~6x) read speed is max 10.57MB/s = ~10 minutes
12x CAV (avg. ~8x) read speed is max 15.85MB/s = ~7 minutes
16x CAV (avg. ~12x) read speed is max 21.13MB/s = ~5 minutes
* write speed time and
read speed time is not the same because writing requires some extra steps and
also does the faster writing above 6x usually use lower write speeds for some
parts of the dvd. 4x DVD speed = 36x CD speed. See section 4.2 in the DVDDemystified FAQ
here.
DVD-VCD
is basicly a VCD authored on a DVD. DVD supports the
VCD resolution but the audio has to be resampled to
48 khz. If the audio is resampled to 48 khz
it is standard DVD-Video. Read more here how to make a such.
DVD-SVCD
is basicly a SVCD authored on a DVD. DVD do not supports the SVCD resolution but it may anyway work
and the audio has to be resampled to 48 khz like the DVD-VCD. Read more here how to make a such and download a DVD Sample including a DVD-SVCD here.
DVD-MP3
is MP3s burned on a DVD but very few MP3 capable standalone DVD Players
supports it because most Players verify DVD as DVD-Video only. Check our DVD Players list for
compatibility.
DVD-ISO
is MPEG ,MPG, VOB files burned on a DVD without any DVD Authoring(making the vob,ifo files) but very few standalone DVD Players supports
it because most Players verify DVD as DVD-Video only. Check our DVD Players list for
compatibility.
What is miniDVD / cDVD
then?
Read here on the miniDVD/cDVD page.
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DVD Trailers,
Dolby
Digital, DTS, THX Trailers and some other DVD VOB Trailers |
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PAL |
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Video: |
Explanation:
. BUP = Backup files of the IFO files.
. IFO = The IFO files includes information such as chapters, subtitle tracks
and audio tracks.
. VOB = The VOB files contains the actual video,audio,subtitles and menus.
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Folder |
Files |
Explanation |
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AUDIO_TS |
(undefined) |
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VIDEO_TS |
VIDEO_TS.BUP |
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VIDEO_TS.IFO |
The first video play item, IFO, usally a copyright notice or a menu |
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VIDEO_TS.VOB |
The first video play item, VOB |
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VTS_01_0.BUP |
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VTS_01_0.IFO |
Title 01, IFO, usually the main movie |
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VTS_01_0.VOB |
Title 01, VOB 0, the menu for this title |
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VTS_01_1.VOB |
Title 01, VOB 1, the video for this title |
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VTS_01_2.VOB |
Title 01, VOB 2, if larger than 1 GB it will be splitted into several vobs |
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VTS_01_3.VOB |
Title 01, VOB 3 |
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VTS_01_4.VOB |
Title 01, VOB 4, up to 10(0-9) VOB files if necassary |
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VTS_02_0.BUP |
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VTS_02_0.IFO |
Title 02, IFO, usually movie extras |
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VTS_02_0.VOB |
Title 02, VOB 0, the menu for this title |
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VTS_02_1.VOB |
Title 02, VOB 1, the video for this title |
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VTS_xx_x.BUP |
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VTS_xx_x.IFO |
And so on |
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VTS_xx_x.VOB |
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VTS_xx_x.VOB |
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VTS_99_9.VOB |
Up to 99(1-99) titles with max 10(0-9) VOB files each |
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