DiskDoubler
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|formattype=electronic | |formattype=electronic | ||
|subcat=Compression | |subcat=Compression | ||
| + | |type code={{Type Code|DDFL}}, {{Type Code|DD01}}, {{Type Code|DDF3}} | ||
}} | }} | ||
| − | DiskDoubler (DD) was a data compression utility for compressing files on the Apple Macintosh platform. Unlike most such programs, which compress numerous files into a single archive for transmission, DiskDoubler was intended to compress single files "in place" to save space on the drive. When such a file was opened, DiskDoubler would decompress the file before handing it off to the application for use. A later addition, AutoDoubler, added background compression, finding and compressing files automatically when the computer was idle. | + | Norton DiskDoubler (DD) was a data compression utility for compressing files on the Apple Macintosh platform. Unlike most such programs, which compress numerous files into a single archive for transmission, DiskDoubler was intended to compress single files "in place" to save space on the drive. When such a file was opened, DiskDoubler would decompress the file before handing it off to the application for use. A later addition, AutoDoubler, added background compression, finding and compressing files automatically when the computer was idle. |
== File Identification == | == File Identification == | ||
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The header will also include the Macintosh Type/Creator code for the original source file. | The header will also include the Macintosh Type/Creator code for the original source file. | ||
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| + | Creator Code is "{{magic|DDAP}}" | ||
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| + | ==Screenshot== | ||
| + | [[Image:NortonDiskDoublerPro-About.png|300px]] | ||
== Links == | == Links == | ||
Revision as of 07:09, 12 May 2019
Norton DiskDoubler (DD) was a data compression utility for compressing files on the Apple Macintosh platform. Unlike most such programs, which compress numerous files into a single archive for transmission, DiskDoubler was intended to compress single files "in place" to save space on the drive. When such a file was opened, DiskDoubler would decompress the file before handing it off to the application for use. A later addition, AutoDoubler, added background compression, finding and compressing files automatically when the computer was idle.
File Identification
DiskDoubler files have no extension, they maintain the source file name and extension (if used).
DiskDoubler files have the magic number (hex values) AB CD 00 54 for the first 4 bytes.
The header will also include the Macintosh Type/Creator code for the original source file.
Creator Code is "DDAP"
Screenshot
