| 摘要 |
A multidimensional optical recording medium and recording and playback apparatus of the same are disclosed. The multidimensional optical recording medium includes a plurality of tracks having a tangential length, a radial width, and a track center. Each of the plurality of tracks is formed at a predetermined interval for writing data therein. At least one mark as encoded data is formed in at least one of the plurality of tracks. The data is encoded by modulating at least one of tangential position, tangential length, radial width, radial offset, or mark characteristic such as depth or reflectivity. The recording and playback apparatus include at least one light source (30) for radiating at least one light beam to the optical recording medium (36). The light beam is arranged such that the light beam spot is able to write and/or read marks anywhere within a track. |
