| 摘要 |
A disc drive (1) comprises first clamping means (5) and second clamping means (7) for supporting an optical disc (3) that is to be played in the disc drive (1). Drive means (9) is provided for rotating the optical disc (3) relative to optical means (11) for writing data to, or reading data from, the optical disc (3). The disc drive (1) further comprises a data storage medium (13) for storing data such as embedded software for controlling the operation of the disc drive (1). The data storage medium (13) is permanently located in the disc drive (1), thereby being permanently available for controlling the operation of the disc drive (1). The data storage medium (13) is located coaxially with optical disc (3) that is to be inserted into the disc drive (1) for playback. The data storage medium (13) is also positioned such that, during playback of a normal optical disc (3), the data storage medium is located on the reverse side of the optical disc (13), i.e. the non-optical side of the optical disc (3). In one embodiment the data storage medium is radially smaller than the optical disc (3), while in another embodiment the data storage medium is radially larger than the optical disc (3).
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