Hello there, I'm new to this forum and this is my first post. I've already done multiboot disk using tools like Magic ISO, EasyBoot. I want to create a DVD now with multiple operating systems on it. Let me tell you my scenario. I owns all these disks. All I want is following things on my multiboot DVD. 1. Windows 98 Second Edition 2. Windows 2000 3 in 1 (With Professional, Server and Advanced Server) 3. Windows 2003 10 in 1 (With all Enterprise, Datacenter, Small Business, Standard, Web Editions both Retail and Corporate) 4. Windows XP Professional 32 Bit Service Pack 3 5. Windows XP Professional x64 Service Pack 2 6. Windows Media Center Service Pack 3 7. My personally created recovery tools CD collection 8. My licenced copy of Winternals ERD Commander 2007 I can create a bootable DVD with all these OSes except Windows 2000 3 in 1 and Windows 2003 10 in 1. When I calculate the size of the ISO's of all of the disks, its 3.88 GB, but when I extract them it goes much higher. Basically the problem is with Windows 2000 and Windows 2003 folders. Windows 2000 folder is more than a GB and Windows 2003 folder is more than 5 GB, though the original size of those ISO's is 615 MB and 697 MB respectively. Please someone guide me how should I do the things and what's actually the problem is. Which tools do I need to make those things to be fit in single DVD. I can create boot menu with EasyBoot, can link them to Boot Sectors of each ISO. But don't know other things. I've made the disk with Windows XP and Windows 98. So no idea about the adding Multiple Editions of a single OS to a disk. I have all Separate Disks of 2003 and 2000, but my friend from another town created that disks for me from my installation disks. I don't have any contact with him now and that's why Don't know how to combine all those editions of single OS in a single CD. Please tell me how to combine them. Thanks for reading. Hope I'll get the solutions. And one more thing, this board rocks!!!