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dvd density
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mixell
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20. March 2006 @ 12:11 |
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a seasoned dvd-burner here with dvd shrink and nero, never met a DVD i couldn't copy. wondering about the density of dvd's--what decides the density? some movies are say 4000, but when criterion puts out a short film, it could be as high as 7600 for one the same length as the 4000 one. i know the DARKNESS of the film has something to do with it, but why are some DVD series, the wire, for example, clocking in at 3800 per 60-minute episode when they have 2 on a DVD, but then for the DVDs that contain 4 60-minute episodes (in the same set) the size of the file goes down to 1800? can't figure out how the density would double. when i play them, the 3600-film say versus the 5600 film, i notice no difference in the denisty on the screen, etc. so just wondering. thanks
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AfterDawn Addict
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21. March 2006 @ 17:27 |
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4000 what? Are you talking about bitrate here?
This message has been edited since posting. Last time this message was edited on 21. March 2006 @ 17:28
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Bubba4u
Suspended due to non-functional email address
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22. March 2006 @ 04:48 |
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Yes it is a difference in bit density on the disk. Some movie studios have brought out some of their titles in what they call "Superbit". These titles are dual layered disks and many contain upwards of the maximum capacity of Gb of info and at the same time fewer extra features. These movies have a noticeable image improvement, especially on larger 100" screens.
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mixell
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6. April 2006 @ 12:45 |
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4000 in size, jeez, what the hell else do you thnk i mean? the size of the film, you dolt, jesus!
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AfterDawn Addict
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6. April 2006 @ 13:28 |
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Quote;
"4000 in size, jeez, what the hell else do you thnk i mean? the size of the film, you dolt, jesus!"
@ mixell, the last thing you want to do here is to hurl insults at members. Otherwise you WILL become extremely unwelcome. Just because someone may ask a simple question, does NOT give you the right to call them names.
I think you owe fasfrank an apology.......
Gif by Phantom69
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Moderator
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6. April 2006 @ 13:44 |
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yes i think an apology is in order.
http://www.Lonero.net - friend of the forums, great guitar player
#afterdawn (well i have no idea where it is anymore) |
Senior Member
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7. April 2006 @ 01:47 |
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16 kbit/s ? videophone quality (minimum necessary for a consumer-acceptable "talking head" picture)
128 ? 384 kbit/s ? business-oriented videoconferencing system quality
1 Mbit/s ? VHS quality
5 Mbit/s ? DVD quality
15 Mbit/s ? HDTV quality
PS: A little etiquette may be in order...
Dropbox: http://db.tt/p5P9bH1d
System 1: Core2Quad Q6600 O/Ced @ 3.15 GHz, Gigabyte GA EP35 DS4 mobo, Zalman 9700, 4GB PC6400 RAM, Sapphire Radeon 2600HD Pro, Samsung 920BW 19" Widescreen LCD, Hauppauge! PVR-350.
System 2: Core2Duo E6400 O/Ced @ 3.2 GHz, Gigabyte GA 965P S3 mobo, Arctic Cooling Freezer 7 Pro, 2GB PC6400 RAM, PNY GeForce 6600, Hyundai B70A 17" LCD. |
AfterDawn Addict
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7. April 2006 @ 05:00 |
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I don't understand people! These are the same people that ask questions and when someone doesn't understand them and asks them to clearify what they are trying to say...they get upset and call people names or throw an attitude! I try not to step on peoples toes and just stick with the facts.... and sometimes I come off with a silly tone... which is not meant to bother anyone. But name calling.... there's no excuse! An appology is called for! After all there are many here, at AfterDawn, that try to help out everyone....even the repeated questions that we see over and over again!!! It's hard to keep helping when someone calls people names and doesn't appreciate the assistance! This is one of the reasons why I haven't been answering questions ........ I'm just getting burned out and maybe I need to take a break from here! Sad..... I love this place!
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AfterDawn Addict
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7. April 2006 @ 05:13 |
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@mixell
I too think you owe fasfrank an apology, he is a respected and extremely knowledgeable member and he only asked a question of you because your post was unclear as to what you wanted. There was no reason to comeback at him as you did. Here is an explanation of bitrate and I hope it helps
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Bit rates
Another common word in the encoding world. Generally, higher bit rates allow for higher quality, because more information is moved.
Think of bit rate as water coming out of a hose. If each drop of water in the stream of water leaving the hose is a single bit, then as you turn up the water pressure more bits are passed along. When the hose is turned down low only a trickle of water is moved meaning that few bits of water are moving resulting in a low bit rate. When the hose is turned to its maximum pressure, a great number of water droplets or water bits are moving each second resulting in a high bit rate.
Very often people are asking about the compression percentage and what results in a good quality backup.
Put simply, it is not the compression percentage which matters but the bit rate which is devoted to the video encoding.
These bit rates should give you a clue on the quality:
1 Mbit/s ? VHS quality
5 Mbit/s ? DVD quality
10 Mbit/s ? HDTV quality
For example, if a movie was originally encoded with a "high" bit rate (say 6 Mbps - "mega bits per second") and compressed by a lot, (say to 50%), on average, this would result in a bitrate of 3 MBps.
But if the movie was originally encoded with a "low" bitrate (say 3.5 Mbps) and was compressed only by 20% (to 80%), the resulting average bitrate would be 2.8 Mbps - worse than the 50% compression!!!
Now, what you can detect as "bad quality" will most likely depend on the final bitrate and the size of your screen. If your are projecting onto a huge screen, the higher numbers are probably necessary (say over 3.5 and preferably 4.5+). But on a regular TV, you can probably get away with the 3 Mbps range (and even lower).
IfoEdit has a neat bitrate calculator in its Tools menu. First, take the total amount of space devoted to your title - DVD Shrink will tell you this in its main screen (it may be 4,463MB for a reauthored DVD). Then, simply enter in the number of audio streams and subtitle streams. If you have a DTS stream add one to the number for audio. IFOEdit will calculate the average bitrate based on this data.
http://forum.digital-digest.com/showthread.php?t=55302
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Member
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7. April 2006 @ 05:14 |
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@mixell
You need to give him an apology or myself and no one else will ever help you out here!!!
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Senior Member
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7. April 2006 @ 07:11 |
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@arniebear
That's the article that I was "Googling" for...
Dropbox: http://db.tt/p5P9bH1d
System 1: Core2Quad Q6600 O/Ced @ 3.15 GHz, Gigabyte GA EP35 DS4 mobo, Zalman 9700, 4GB PC6400 RAM, Sapphire Radeon 2600HD Pro, Samsung 920BW 19" Widescreen LCD, Hauppauge! PVR-350.
System 2: Core2Duo E6400 O/Ced @ 3.2 GHz, Gigabyte GA 965P S3 mobo, Arctic Cooling Freezer 7 Pro, 2GB PC6400 RAM, PNY GeForce 6600, Hyundai B70A 17" LCD. |
AfterDawn Addict
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7. April 2006 @ 09:10 |
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I was just after a bit of clarity here.
Sometimes people use different terms to describe the same thing. When I reply to a post I want to be sure that I'm on the same page. This way the answer I give will be relevant.
I want to thank all who came to my defense here!
We get stupid responses like this here now and again, which for me is no big deal. It goes with the territory.
It would have been so easy for mixell to put a descriptor at the end of each of the numbers he used to describe DVD "density", say MB?
I did figure out what he was asking here and came up with an answer but this dolt isn't going to tell him.
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AfterDawn Addict
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7. April 2006 @ 09:41 |
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Well I googled and got a whole lot of info in bit density and aerial density, and tried to read it and got a headache. I will leave the understanding of it all to the pros.
@fasfrank
You are a gentleman :)
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mixell
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7. April 2006 @ 12:58 |
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WAAAAAAAAAAAAAAAAAAAAAAA
WAAAAAAAAAAAAAAAAAAAAAAAAAA
what, i'll have to log onto here with ANOTHER screenname, gee, TOOOO BAD!
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AfterDawn Addict
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7. April 2006 @ 13:14 |
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quote
Computer storage density is a measure of the quantity of information bits that can be stored on a given length of track, area of surface, or in a given volume; of a computer storage medium. Generally, higher density is more desirable, for it allows greater volumes of data to be stored in the same physical space. Density therefore has a direct relationship to storage capacity of a given medium.
For example, the capacity of a standard 3˝ inch "high density" ("1.44 megabyte") floppy disk (diskette) is 11,796,480 bits (using MS-DOS format). The recording density could be measured in these ways:
* Linear recording density: The data is stored on concentric tracks along the surface of the diskette. The maximum recording density along 1 inch of the innermost track is 17,434 bits per inch (686 bits per millimeter).
* Surface density: The diskette will store 80 tracks of data at a spacing of 135 tracks per inch (5.05 tracks per millimeter) with the innermost track at approximately 10.5 millimeters radius and the outermost track is at approximately 25.5 millimeters radius. Therefore, the tracks occupy a surface storage area of approximately 1700 square millimeters. The effective recording density is therefore 11,796,480/1,700 or 6,940 bits per square millimeter.
* Physical density: The diskette physically measures approximately 94 × 90 × 3 millimeters, for a volume of 25,380 cubic millimeters. The physical density by volume is therefore 465 bits per cubic millimeter.
Different storage mediums are compared by density in order to measure the efficiency of the storage. Modern storage densities are quite high: the physical density of a 512 megabyte Secure Digital® flash memory card is approximately 5,020,000 bits per cubic millimeter (5,400 times that of a "high density" floppy).
Digital magnetic tape is usually measured in "bytes per length"; other media in bits per square millimeter of surface area (since most media, including integrated circuit memory, is still 2-dimensional). However, upcoming media will store data in volumetric space, making volume computations more relevant.
Also, storage densities computed for comparison of technologies usually ignore physical containment; that is, memory density is computed based upon the number of bits relative to the surface of the integrated circuit, rather than the surface of the encasement.
There is a theoretical upper limit to the amount of information that can be stored in a finite space. This limited information density limits the theoretical maximum information capacity of any given object. Practically speaking, technology is many orders of magnitude away from this limit.
a ton of stuff can be read here
http://encyclopedia.thefreedictionary.com/bit+density
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AfterDawn Addict
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7. April 2006 @ 13:15 |
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Well, if you don't like how we do things here, & you don't apologise, don't bother coming back. We don't need you.
We will soon work out who you are.
Too bad for you, not for us.....
Gif by Phantom69
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mixell
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7. April 2006 @ 14:30 |
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REALLY? With a different e-mail address and different locution, REALLY? Doubt it bud, doubt it. Berkeley Ph.D. here in Linguistics.
Lat-a, Hate-a.
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AfterDawn Addict
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7. April 2006 @ 14:38 |
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Ph.D. in linguistics? Shame you can't spell location.
See ya, wouldn't want to be ya......
Gif by Phantom69
This message has been edited since posting. Last time this message was edited on 7. April 2006 @ 21:48
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AfterDawn Addict
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7. April 2006 @ 21:08 |
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@mixell, It's not your e-mail or user name that will give you away. You have a way with words, maybe from your fine "Berkley" education, that speak volumes about who you are.
How could you ever hide that?
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Moderator
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8. April 2006 @ 01:51 |
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@mixell has gone. we specialise in little ill-educated schoolkid prats who like to come back, they always get fed up though, and we always find them as they have an amazing inability to type properly or behave, so always stand out a mile. plus we have other ways of identifying them anyways.
i'll leave this open just long enough to see if the little worm has any predictable and purile comments.
Main PC ~ Intel C2Q Q6600 (G0 Stepping)/Gigabyte GA-EP45-DS3/2GB Crucial Ballistix PC2-8500/Zalman CNPS9700/Antec 900/Corsair HX 620W
Network ~ DD-WRT ~ 2node WDS-WPA2/AES ~ Buffalo WHR-G54S. 3node WPA2/AES ~ WRT54GS v6 (inc. WEP BSSID), WRT54G v2, WRT54G2 v1. *** Forum Rules *** |
AfterDawn Addict
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8. April 2006 @ 03:38 |
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So sad to see mixell has left the building :)
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young377
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14. April 2006 @ 15:10 |
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oh, gee, really Creaky? so what you're saying is that you HAVE already identified my OTHER NEW regular afterdawn account that i've been using for the past week and discussing things with people under? interesting, you pathetic lying little s**t.
so delete this one, afterdawn, and THEN TRY to find the other new account I have, just TRY, LOL LOL LOL LOL!!!
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Moderator
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14. April 2006 @ 15:24 |
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well creaky's probably sleeping, so i'd be more than happy, bye lamer.
http://www.Lonero.net - friend of the forums, great guitar player
#afterdawn (well i have no idea where it is anymore)
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Moderator
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15. April 2006 @ 08:17 |
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and as if by magic i predicted some "predictable and purile comments"
i'm not a liar but a pretty good copy/paster, so......
Quote:
i'll leave this open just long enough to see if the little worm has any predictable and purile comments
Main PC ~ Intel C2Q Q6600 (G0 Stepping)/Gigabyte GA-EP45-DS3/2GB Crucial Ballistix PC2-8500/Zalman CNPS9700/Antec 900/Corsair HX 620W
Network ~ DD-WRT ~ 2node WDS-WPA2/AES ~ Buffalo WHR-G54S. 3node WPA2/AES ~ WRT54GS v6 (inc. WEP BSSID), WRT54G v2, WRT54G2 v1. *** Forum Rules ***
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AfterDawn Addict
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15. April 2006 @ 11:50 |
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can't we all behave???
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