The present invention provides a composition and a method of using the same to form a pattern on a substrate using imprint lithography employing dark-field polymerization. According to one embodiment, the media-detection system comprises at least one indicator arm displaceable by at least one surface feature of the data cartridge as the data cartridge is loaded in a cartridge-receiving device. This is essentially in the form of a cylinder which is closed at one end and whose external diameter is at least as large as the internal diameter of the cylindrical container part. A method of producing a molded floor covering having an integrally formed, threaded drain tube includes providing a mold having a contour of a vehicle floor with an outwardly projecting threaded member. The above processes of assigning and storing software code block identifiers and test identifiers may be automated, thereby increasing the likelihood that a complete set of correct tests are performed on the modified software code block. The retransmission method includes determining whether an error is detected in data received from an upper node; generating a message indicative of the data error; and sending the message to the upper node at a time that is not appointed with the upper node.