Windows 2000 4in1 Iso size change

[sam1984]

hi,

i take an iso image of windows 2000 that contains 4 edition of it.the size of image is 690 Mb but ultra iso showa "Total Size 1629"

i edited this iso by UltraIso and save it but iso size changed to 1630MB,

i see kind of image file for example Microsoft Visual studio 2008 express edition is like this.its size is 800 mb but when you change or extract it it change to 2gb.

with witch program they make this iso and how can i change the iso without any change in size?

thanks alot

[nmX.Memnoch]

I believe that Microsoft uses their CDIMAGE.EXE utility. They use it with an option that only writes duplicate files to the ISO once.

You can find information about CDIMAGE on the MSFN Unattended XP site.