With this software tool you can customize loading a USB memory stick and allows adding persistence to write back to USB drive. That is the fault using CD drive not being able to save data. Both are free. Download Plop will set up drive on older PCs run different drives on startup. Plop - Home - Free Boot Manager with lot of features like USB, CDROM, partition hiding and much more. Plop Linux boot from CD, USB PXE Network and much more
Oh yeah I like plop it emulates being a cd rom thus enabling the functionality of usb booting. Thanks for the reminder. Unetbootin and tuxboot are also good linux alternatives if you wanted to create a live cd from a linux os. Or the dd command to send the iso to the usb, aprently you dont need to add ms-dos bat file or a grub system managers, as they embed it on the iso (linux live cds only, regarding dd)
I boot off a USB drive using plop and some times it stops working and need to reinstall plop. Purchased a reaver pro and so far not impressed. save your money and use software in PC and directional USB antenna. .