DiskDoubler

From Just Solve the File Format Problem
(Difference between revisions)
Jump to: navigation, search
(Created page with "{{FormatInfo |name=gzip |formattype=electronic |subcat=Compression }} DiskDoubler (DD) was a data compression utility for compressing files on the Apple Macintosh platform. U...")
 
Line 1: Line 1:
 
{{FormatInfo
 
{{FormatInfo
|name=gzip
+
|name=DiskDoubler
 
|formattype=electronic
 
|formattype=electronic
 
|subcat=Compression
 
|subcat=Compression

Revision as of 16:15, 15 April 2019

File Format
Name DiskDoubler
Ontology

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.

Links

Personal tools
Namespaces

Variants
Actions
Navigation
Toolbox