DD File Extension - Open .DD files

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Common File Extensions

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.DD File Extension

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File Type

DiskDouber Archive

Popularity

Average

Category

Compressed Files

File Description

Compressed file archive created by Macintosh DiskDoubler for Mac OS Classic; uses the LZ78 compression algorithm; compresses files in place on the hard drive, which are expanded on-the-fly when opened; compressed automatically in the background using AutoDoubler.

DiskDoubler was later replaced by Now Compress and Stuffit SpaceSaver; DiskDoubler is not available for Mac OS X.

Program(s) that open dd files

Mac OS

Norton DiskDoubler Pro

SuperDoubler

DDExpand