I think he is talking abut a wood construction under the drawer. Cut a dovetail grooved piece that goes under the center of the drawer opening. Then a closely fitted slider that fits the groove is attached to the drawer.
Make sure the bottom part is 90 to the face or the drawer will bind. I'd put a bit of double stick tape on the top piece so it sticks to the bottom of the drawer, Drill starter holes if you use screws to attach the door part, although glue is probably sufficient. I'd use hyde glue in case you need to repair it at some point. Here's a picture of a wood drawer slider.
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My own personal preference is full extension metal drawer slides on each side. You could probably use medium duty sliders for a dresser. I like to be able to get to the stuff in the back of the drawer without worrying about accidentally pulling to drawer out too far, which happens with wood sliders. But it's practical, and not classical furniture construction.