1.) Create a folder to hold the ISO image on the Windows PC.
2.) Create an ISO image of the First CD of the Suse 9.2 set in the folder you created. I used Nero to create an nrg image and converted it using Ultra ISO. Ultra ISO can also create an image from the tools menu select CD/DVD Image.
3.) Next open the Image you created with Ultra ISO, there you will be able to see the internal directory structure of the image file. You can extract files from it or add files / folders to it. It should look like, not expanded:
SU920.001
+Boot
+Docu
+Dosutils
Media.1
+Suse
4.) Insert CD # 2 into the drive and open it using the bottom browser pane of Ultra ISO. On the right side bottom pane select EVERYTHING on the disk. Drag this selection to the very top of the image directory top left window where it is labeled “ SU920.001 “ and drop it there. It will ask about overwriting several files “ license, copying, etc just answer yes to all.
5.) Once CD # 2’s contents have been added to the image of CD # 1, select file and save the image. You have to leave the CD # 2 in the drive until this step is completed. Note the save takes a while it could be 10 minutes on a slow machine.
6.) Repeat steps 4 and 5 for each of the 3 remaining CD’s. Remember to save after you add each of the CD’s contents. Always make sure you drag to the very top of the directory structure where it says SU920.001, and save after each CD.
7.) When you get to this step you should have an image file that shows in Ultra ISO as 3,240 MB, windows will display this number differently in explorer. The directories should read top to bottom as below not expanded:
SU920.001 ( This is the Volume Label ) that we are going to change next.
+Boot
+Docu
+Dosutils
Media.1
Media.2
Media.3
Media.4
Media.5
+Suse
8.) Next select the top of the directory structure where it states “SU920.001”, right click it and rename it to SU920.DVD. I’m not sure this step even matters but that’s what I did. It should now look like:
SU920.DVD
+Boot
+Docu
+Dosutils
Media.1
Media.2
Media.3
Media.4
Media.5
+Suse
9.) Only one problem left, the MD5SUM files are messed up as the only ones you have in the image file are the last CD’s MD5SUM's. These files are plain text files that have a file list of the directory contents and each of the MD5SUM’s for each file. They are contained in the directories i586, i686, noarch, and setup directories under the suse directory.
SU920.DVD
+Boot
+Docu
+Dosutils
Media.1
Media.2
Media.3
Media.4
Media.5
+Suse
I586
I686
Noarch
+Setup
10.) We do not need to bother with the “setup” directory MD5SUM file, it is still the original from CD # 1, and it should only be one file md5sum listed, none of the other CD’s has this directory.
11.) Create a temporary directory for each of the i586, i686, noarch directories on the windows PC, Insert CD #1 into the drive and copy the MD5SUM files from the CD to the respective temp hard disk folders.
12.) Next insert each of the other CD’s ( 2, 3, 4, and finally 5 ) one at a time and append the appropriate MD5SUM text to the bottom of the MD5SUM files from CD # 1. Remember when they are saved DO NOT GIVE THEM A FILE EXTENSION! Windows may want to assign it as “ MD5SUM.txt “ it should be “ MD5SUM ” Without the quotes.
13.) When the MD5SUM files are all combined into a plain text file for each directory i586, i686, noarch, we just use Ultra ISO to copy each of these files to their respective directory and overwrite the existing MD5SUM file inside of the image, and save the ISO image again. The image file is complete and ready to burn.
14.) The last step is to use your favorite DVD burning software and burn the image to a blank + or - DVD of your choice. I always use a slow speed for DVD burning for quality. Save the image file until you are sure that you have a good burn.
Source: www.linuxquestions.org