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Reduce ISO image size

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15 replies to this topic

#1
kernel93

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Hi,
I'm searching a free tool to reduce the ISO image size similar of Linux DVD installation where more 4Gb are burnst only on one DVD...
Thank you for your help.


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#2
possy_99

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I use UltraISO which has a optimize option when you go to save the ISO, although I haven't used that option as far as I know it is intended to reduce the filesize somehow.

another alternative is CDIMAGE, I've seen this mentioned a few times although never used it myself, same purpose though.

..somewhere to start anyway..

good luck ;o)

#3
LLXX

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Look here: http://www.msfn.org/...ST&f=19&t=14050

#4
Tommix

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4GB ? in DVD fills 4.7GB [4.5], so there is no magic :)

#5
CptMurphy

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It's actually 4.3 unless you can overburn.
--- Signatures with a resolution greater then 300pix in width and 100pix in height will be removed ---
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#6
MichaelMagdy

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hi

yes everybody i want to know too

but with 700MB cd because my extra apps in unattended win is 800.iso MB

so how can i burn it ib 700MB

exactly like aio 5 in 1 office xp

so pleae help us

thanks in advance

Michael

#7
McStarfighter

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Every ISO creation tool, which have options like "duplicate once" or similar, can reduce the needed size of the disc. They all use a hardlink function which is know from NTFS. On FAT file system it is called "cross-chained files" and on the Linux systems it is called "symbolic links". This means: If on your disc is a file i.e. notepad.exe which is five times there and all the five "notepad.exe" are EXACTLY the same file (check the hashes) then the tools create one real notepad.exe and at the other locations of the notepad.exe it creates only a special kind of link which says "I am notepad.exe" but it is only a link to the real notepad.exe. But the good thing is that the hardlink reacts like the real notepad.exe and the OS think there are 5 real notepad.exe and not only one.

#8
MichaelMagdy

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@McStarfighter

thx for ur post

but can you advice me by which program have options like "duplicate once" or simil

and if you can add some pic so we can follow it

that's what i have got when try to copy norton antivirus 2006 with total size 1.36 GB to cd 700 MB

the norton2006.iso size is 796 MB

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thx very much

Edited by MichaelMagdy, 21 February 2006 - 09:28 AM.


#9
McStarfighter

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Hi,

in UltraISO the option is at File - Properties. And there is the option "Optimize". This is what I mean.
At CDImage and CDImageGUI I know they have the options, too. Perhaps mkisofs and tools which are based on mkisofs can do this, too.
I never had made such a kind of disc (I'm still working on my 8GB-Multiboot-USB Flash Drive...) so I can't exactly say how to make the discs with the options. But still there is Google... :D

#10
MichaelMagdy

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ok thx any way

and looking for more info

#11
stasys44

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@MichaelMagdy
If your Norton Antivirus pack (or another program pack) size before optimization is 1.36 GB and resulting ISO image size is 796 MB you cannt burn ISO image (796 MB) to 700 MB CD. You should apply overburn using special CD (say 850MB) and your CDROM must support overburning.

Making ISO (with wanted features incl. optiimizing) is very easy with CDimage GUI. When all preparements are done you press Creation button and you get alike this:
The following Commandline will be executed:
"C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\cybECC7.tmp\cdimage.exe" -l"winxp" -t02/16/2006,00:00:00 -h -n -b"D:\WinXP_RVM_BTS\loader.bin" -x -o -m "D:\WinXP_RVM_BTS" "f:\winxp.iso"

It's usual Cdimage command line, but you don't worry about syntaxis in the above case.

#12
MichaelMagdy

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@MichaelMagdy

Making ISO (with wanted features incl. optiimizing) is very easy with CDimage GUI. When all preparements are done you press Creation button and you get alike this:
The following Commandline will be executed:
"C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\cybECC7.tmp\cdimage.exe" -l"winxp" -t02/16/2006,00:00:00 -h -n -b"D:\WinXP_RVM_BTS\loader.bin" -x -o -m "D:\WinXP_RVM_BTS" "f:\winxp.iso"

It's usual Cdimage command line, but you don't worry about syntaxis in the above case.



@stasys44

i'm so sorry

but i didn't understand how can i reduce my iso with cdimage gui

can you add any explanations pictures through command line with norton.iso

#13
stasys44

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Download CDimage Gui and try:
http://www.tech-hint.../cdimagegui.zip

I use it for Windows XP installation with various options - unattended, regular, with Bashrat driver pack, without BTS drivers.

STARTUP button - there are 3 tabs - directories, config, about
CONFIGURATION - 7 tabs - files, filesystem, boot, signature, report, test,
creation
files - if you use time stamp - mm/dd/year,hh:mm:ss
- you should include hidden files and directories - check -h
boot - choose your boot file. I use BCDW v.2 - it supports ISO
(Acronis True Image, Disk Director ,..),
I point to loader.bin
If you use CD shell, EZ boot, your choice will be other
signature - you should check -o OPTIMIZATION
....
....
creation - what volume label?
CREATION - command line

Success

#14
MichaelMagdy

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WoW

and these steps will comprese the iso 796 MB
so i can burn it easy

i can tell you how glad i'm

i will try these steps today

thank's very much

796



#15
stasys44

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Thanks too early.

Please read post #7 in page1 on this topic. If you have many identical files the optimisation helps very much. For exemple Windows XP all versions in one.

#16
The008

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I use mkisofs (it's used by BartPE as well), and I created a XP 8in1, with 4,81GB optimized to 680MB, the it's just burn to a 700MB CD.

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