| 摘要 |
<p>A cartridge including a cover casing (52), a back casing (20), and a disc-shaped medium (16) provided between the casings. The cover casing has a centrally-located, raised surface (58) on its interior surface (54) which is chemically and physically integral with the cover casing. When the cartridge is inserted into a drive for reading/writing the medium, a drive pin from the drive contacts the raised surface. The cover casing is comprised of high-impact polystyrene containing silicone.</p> |
