| 摘要 |
A helical scan system determines whether media-to-be read is non-native formatted media and controls operating parameters (e.g., tape speed) (214) so that non-native formatted media can be read without resort to embedded servo information in the non-native media. The helical scan system reals the media (200) in a manner to obtain format-indicative information therefrom, and then determines whether the media is non-native formatted (206). If the media is non-native formatted, a controller determines operating parameters required by the system to read the non-native formatted media (212) and generates signals corresponding to the required operating parameters. The media is preferably read in a slow speed mode (204) in order to obtain format-indicative information therefrom, and block header information obtained from the media is analyzed (206) to determine whether the media is non-native formatted. |
