Lets know how to create windows 8 bootable dvd  from an iso image.  But before you know how to create dvd you should know the system  requirements to install windows 8

Windows 8 System Requirements

Windows 8 works great on the same hardware that powers Windows 7.

Processor:    1 GHz or faster

RAM:    1 GB (32-bit)  or  2 GB (64-bit)

Hard disk space:   16 GB (32-bit) or 20 GB (64-bit)

Graphics card:   MicrosoftDirectX 9 graphics device or higher

Creating Bootable DVD

To create the disk for windows 8 you need to have windows7  USB/DVD tool. If you don’t have you can download from the link given below and then follow the steps below:

Step 1: Download Windows7-USB-DVD-tool from link given below:

Download windows7  USB/DVD tool   

Step 2: Run the file Windows7-USB-DVD-tool.exe and then Click next and install it.

Step 3:  Now open Windows 7 USB DVD Download Tool from desktop shortcut .

Step 4: Browse for the Windows 8 ISO file on your disk.   Click Next.

Step 5: Choose media type – Which one you want to create USB DEVICE or DVD

Step 6 : Now Insert your blank DVD in drive and click Begin burning

In the next few minutes, the bootable DVD will be ready for you to install Windows 8 on any of your other machines.