DVD stands for Digital Versatile/Video Disc
DVDR stands for DVD Recordable
DVDRW for DVD ReWriteable.
There are three competing DVD Recording standards, DVD-R/W and DVD+R/W 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.
1)DVD-R and DVD-RW
DVD-R/W 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 79% of all DVD Players and most DVD-ROMs.
DVD-R/W 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.
2) DVD+R and DVD+RW
DVD+R/W has some "better" features than DVD-R/W such as lossless linking and both CAV and CLV writing.
DVD+R is a non-rewritable format and it is compatible with about 88% 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/W 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 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).
3) 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.
DVD Sizes, What is DVD-5, DVD-10, DVD-9 and DVD-18?
How much does a DVDR/W fit? Is it 4.7GB or 4.38GB? 8.54 GB or 7.95 GB?
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 4.37GB.
DVD+R/W and DVD-R/W supports this format. Also called Single Sided Single Layered.
DVD-10, holds around 9 400 000 000 bytes and that is 8.75GB. DVD+R/W and DVD-R/W supports this format. Also called Double Sided Single Layered.
DVD-9, holds around 8 540 000 000 bytes and that is 7.95GB. DVD+R supports this format. Also called Single Sided Dual Layered.
DVD-18, holds around 17 080 000 000 bytes and that is 15.9GB. DVD+R supports this format. Also called Double Sided Dual Layered.
Other non-standard special DVD formats:
DVD-VCD - is basicly a VCD authored on a DVDR/W. 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.
DVD-SVCD - is basicly a SVCD authored on a DVDR/W. 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.
DVD-MP3 - is MP3s burned on a DVDR/W but very few MP3 capable standalone DVD Players supports it because most Players verify DVDR/W as DVD-Video only.
DVD-ISO - is MPEG,MPG,VOB files burned on a DVDR/W without any DVD Authoring (making the vob,ifo files) but very few standalone DVD Players supports it because most Players verify DVDR/W as DVD-Video only.
Technical Info for DVD-Video
PAL
Video:
Up to 9.8 Mbit/sec MPEG2 or up to 1.856 MBit/sec MPEG1 video
720 x 576 pixels MPEG2 (Called Full-D1)
704 x 576 pixels MPEG2
352 x 576 pixels MPEG2 (Called Half-D1, same as the CVD Standard)
352 x 288 pixels MPEG2
352 x 288 pixels MPEG1 (Same as the VCD Standard)
25 fps (frames/second)
16:9 Anamorphic (only supported by 720x576)
Audio:
48000 Hz
32 - 1536 kbit/sec
Up to 8 audio tracks containing Dolby Digital, DTS, PCM(uncompressed audio), MPEG-1 Layer2. One audio track must have MPEG-1, DD or PCM Audio.
Extras:
Menus, still pictures, subtitles and more.
NTSC (NTSC Film)
Video:
Up to 9.8 Mbit/sec MPEG2 or up to 1.856 MBit/sec MPEG1 video
720 x 480 pixels MPEG2 (Called Full-D1)
704 x 480 pixels MPEG2
352 x 480 pixels MPEG2 (Called Half-D1, same as the CVD Standard)
352 x 240 pixels MPEG2
352 x 240 pixels MPEG1 (Same as the VCD Standard)
29,97 fps (frames/second)
23,976 fps with 3:2 pulldown = 29,97 playback fps (NTSC Film, this is only supported by MPEG2 video)
16:9 Anamorphic (only supported by 720x480)
Audio:
48000 Hz
32 - 1536 kbit/sec
Up to 8 audio tracks containing DD (Dolby Digital/AC3), DTS, PCM(uncompressed audio), MPEG-1 Layer2. One audio track must have DD or PCM Audio.
Extras:
Menus, still pictures, subtitles and more.
DVD File/Folder Structure
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.
http://www.gromkov.com/faq/faq2004-0070.html
No comments:
Post a Comment