The Full Spectrum Engineering Custom CD Holder is designed to fit in any inkjet printer capable of printing CDs/DVDs.  Simply place the CD holder on the inkjet CD printing tray supplied with your inkjet printer and tape it down.  Important: Be careful not to cover any holes a normal CD wouldn't cover.  The printer often uses these holes to register the position of the CD.  If the CD tray normally holds the CD on the outside edge, no modification is necessary.  If the CD holder holds the a CD with a raised center button hole (very common) then use a Dremel tool or sharp knife and cut a hole to remove this protrusion.  The hole does not need to be precision.  Simply cut a rough hole so that when a PCB is mounted it can sit flush.  Use a machinist square to align the edge of the CD tray and the flat edge of the custom PCB holder 90 degrees as illustrated below.