facing the recording surface of the disk, for reading information from the disk and for reading the cylinder address item and burst data item from the disk at a predetermined sampling frequency, an actuator holding the head, for moving the head in a radial direction of the disk, and a position-detecting circuit for detecting a position of the head from the cylinder address item and burst data item read by the head, the control system designed to move the head to a target position in accordance with the position detected by the position-detecting circuit and comprising:
a digital controller for generating, by digital processing, a first operation signal for moving the head, from the position detected by the position-detecting circuit; and
a signal output section for distributing the first operationmuch lower price - as much as 1/10th that of the putative retail price. 

The latest variety of the white van scam was observed around "commercial grade" trampolines on eBay, Craigslist and other classified sites. They are typically listed as refurbished or like-new with a story about why they are so deeply discounted and need to be sold so fast, often referencing a poorly made, fake vendor website with listed prices. These list prices are significantly higher than comparable premium products to give the illusion that the trampoline is a step up over regular "consumer grade" trampolines. Googling brands and models often leads to completely unrelated products via Google AdWords or consumer reviews on competing products, often placed there by the scammers themselves. Ironically, safety is often highlighted