How to install Windows 8 64-bit Developers Preview on Pendrive

I downloaded a Windows 8 64-bit Developers Preview. Apparently, I realized that the size is greater than 4.7GB. I tried to make a bootable installer on an 8GB Pendrive but it resulted in installation error. Can you really install Windows 8 64-bit Developers Preview on a Pendrive? How? If not how can I produce a bootable DVD of Windows 8 64-bit Developers Preview? Should I use an 8GB Dual Layer or higher grade DVD?
