You could always load it onto a flash drive and install. (If your PC supports booting from USB)
Takes about 5 mins to ready and copy to the flash drive, then about 75% of the time it takes with a CD to install from the flash drive.
To do this;
1. Get a USB Drive, it must be at least 4 GB.
2. Plug the drive into your PC.
3. Open a command prompt as administrator. (Right click, Open as Admin, or Ctrl+Shift+Click)
4. Get the drive number by typing:
diskpart
list disk
On my machine the USB disk was number 1.
5. Format the drive by typing:
select disk 1
clean
create partition primary
select partition 1
active
format fs=NTFS
assign
exit
6. Mount the Windows 7 beta iso or insert the disk.
7. Navigate to the boot directory
cd E:\boot
8. Using bootsect, we’ll make the USB drive a bootable NTFS drive, ready for a Windows 7 image (my drive was labeled G):
bootsect /nt60 G:
9. We are finished with the command prompt now, so you can close it.
Copy the installation files from the mounted Windows 7 iso/disk to the USB drive.