can anybody tell about iso file?

[sumeshkri]

what is an iso file> how can it be created and how it works>plz

[Noahtuck]

Top left hand corner of every page on the site....


https://www.videohelp.com/glossary?I#ISO

It's basically a container that can hold any number of diff. files.

Some ISO's are dvd's, some are games, some are audio, ect ect ect.

How to make one... depends on what you are starting with, what you want to finish with and what you want to accomplish.

If it's files on your pc, ImgBurn can pretty much put anything into an ISO you want...
If it's on a disc, it depends on what it is.

[theewizard]

AFAIK

an ISO is an image file, an exact duplicate of a disc

a burner program will burn the image to the disc, and the disc is ready to use or play, wheter it is a program or music or whatever

there are programs that 'mount' the image on your hard drive, creating a virtual disc from which you can run the programs or play the music

basicly an ISO is an image ready to be used, it can be temporaly mounted or it can be burned, it does not need to be converted or processed

so a 4.7 gig ISO is an IMAGE of a DVD,

[Noahtuck]

AFAIK

an ISO is an image file, an exact duplicate of a disc

An ISO is JUST a conatainer and can contain anything you want it to, it does not have to be from a disc.

[theewizard]

perhaps you are correct

I have never seen an ISO file that was NOT an image file ready to be burned, or mounted,

I suppose this could be the most common use of this 'container'

Do you use ISO files of any other type ?

do you put avi's in an ISO like you would a RAR, ISO is a NON-compression format

[Midzuki]

<WIKIPEDIA>

An ISO image (.iso) is a disk image of an ISO 9660 file system. ISO 9660 is an international standard originally devised for storing data on CD-ROM. More loosely, it refers to any optical disc image, even a UDF image.

As is typical for disc images, in addition to the data files that are contained in the ISO image, it also contains all the filesystem metadata, including boot code, structures, and attributes. All of this information is contained in a single file. These properties make it an attractive alternative to physical media for the distribution of software that requires this additional information as it is simple to retrieve over the Internet.

</WIKIPEDIA>

mkisofs is the nerdish way to create .iso files

[redwudz]

As mentioned, a ISO is a container, not a format. Quite a few games off the net are in ISO format. It's used for all types of files besides video. It has the advantage of taking a bunch of individual files and placing them in a single container, much like a folder does.

In the case of video files, players like VLC can play the video most times without extracting them. And DVD Shrink works with ISO files of a VIDEO_TS folder. They can also be 'mounted' with a program like Daemon Tools to emulate a hard drive or a optical drive for playback or installation of a program without having to burn the ISO to a disc.

[jagabo]

ISO is a container (disc image), a format (CD, DVD), a zillion different specifications from the Internation Standards Organization.

http://www.iso.org/iso/home.htm

[theewizard]

when DL an ISO, it will contain mutlitple files, but those files are intended to be mounted and run, or otherwised burn to DISC

say you want to produce a mutli-media disc to demo your band, or your video production work, you 'assemble' those files including the autorun file, preloader, content, vids, picture, music etc into a directory someplace then you create an ISO image you can mount it and test it,

if its not right, edit some files and do it again

when you have it the way you want it, you can burn DISCS, or put the ISO image on the net for DL

its common to think of containers avi, mpeg2, TS, etc as containing multuple streams muliplexed together, it takes special programs to 'extract' a stream

and ISO is just an aggregate of files, you burn the disc, or mount the ISO to a virtual drive, then copy any file you want open any file you want, open any folder you want, ISO is more of a format for storage, NOT a container like avi, mpeg, ts ..etc

it might contain anything including but not limited to 'data' or music or video, but it will be usually limited to

CD format or DVD format

something that can be burned or opened,

I don't think you'll come across an ISO with 1 gig of music, or just (1) 950mb file

lets NOT get caught up with might be's and maybe's,

[Video Head]

ISO is a container to hold an exact copy of the original. If you where distributing cloned sheep you would want to ship them in an ISO container

The major advantage of ISO is to distribute or store an absolute exact copy of an original file or set of files. The files contained in the ISO cannot be modified or changed in any way until it is unpacked...sans deletion of the complete ISO.

[theewizard]

@ video head, thank you, you said it better than me

[sumeshkri]

Thanks a lot for the suggestions.i got the idea that an iso is a container /exact copy of a folder which can hold different type of files like music,video or documents.ok? now plz tell me how to burn the iso through which programme. can nero burning rom do it or is it necessary to use Imgburn? then after burning it to a disk how can i read the disk later with what programme? will i need an iso extractor programme? thanks in advance.

[poisondeathray]

sumeshkri - you can burn an iso with either nero or imgburn (but most here would suggest imgburn)

Since it is a disk image, you shouldn't need any special software to read it (e.g. if it was an iso of a game, it would be just like the game disk; if it was an iso of a movie, it would be just like the movie disk, etc...)

[jagabo]

Nero Burning ROM -> Recorder -> Burn Image -> select ISO and burn.

[theewizard]

an iso is an image of a disc,

that disc might contain one folder of data, or a group of files that make up a game

once the iso is burned to a disc, you have a copy/duplicate of that disc

you run it, OR open it, or play it .... depends on what it is

if the source was a disc of encrypted files, then you will have copy disc of encrypted files...

we have to assume that you know what it is supposed to be..

[sumeshkri]

thanks a lot for the suggestions. can use nero or imgburn. no need for any spl software to open it. ok.
what is the advantage of burning the disk as iso? suppose we burn a disk as vcd. the same material we burn it as an iso. what difference does it make? in quantity or quality or anything else? why should we prefer an Iso ?

[poisondeathray]

An iso can be a disk image of a CD or DVD. You can't "burn it as a VCD", unless it was an ISO of a VCD. Even then, you would still have to burn it using the ISO profile otherwise it will not work. If you do this, the end result will be a perfect copy of whatever the ISO replicated

One advantage of using ISO disk images is that you don't even have to burn it (ie. keep it on your hard drive). You get much better transfer rates, loading times for games. If it was an ISO of a movie, you can play directly from the ISO on a PC using VLC

Assuming your ISO image was of a VCD (and it was made properly), there would be no difference in quality between the original VCD and the iso image or if you burnt it to a disk.

[sumeshkri]

thank you very much for the quick reply. really very informative.