ODD - Virtual CD only (recommended for installing)
Dual mode - Virtual CD and external hard drive at the same time (handy for recovering files)
Copy an ISO to the drive
Plug it into any computer
Put it into HDD or Dual mode
Copy the .iso file to the _iso directory on the drive
Done!
Boot off an iso
Plug into the server your booting
During POST select your iso, then middle click to select it
if you don't see the cd icon (o inside an O) it's not mounted, middle click again
Select a boot device on the computer
Most of the time you can just select CDROM
I have found a few BIOS's that will only boot off one CD ROM at a time, if that's the case you must go into the BIOS and put the Valman Virtual CDROM above the built in IDE or SATA one.