De-coder.com

Generic Diff Format
Specification of GDIFF, a generic file format for representing the differences between two files, from Marimba to the W3C.
www.w3.org/

DOC Format Man Page
Describes the structure of the PalmPilot .doc standard text file format.
www.nicholson.com/

PDB Format Man Page
Describes the structure of the PalmPilot .pdb (Pilot Database) file format.
www.nicholson.com/

PRC Format
An attempt to decipher and describe the PalmPilot .prc file format.
web.mit.edu/

Windows Dynamic Disks (LDM) on-disk format
Windows 2000 and XP use a custom partitioning scheme. The documentation shows how to locate and assemble the Simple, Mirrored, Striped, Spanned or RAID5 volumes.
linux-ntfs.sourceforge.net/

ASE File Format
Technical information about the 'ASCII Scene Export' data format.
www.unrealwiki.com/

ZIP File Format Specification
Application notes describing the zip file format, its methods, layout, and data.
www.pkware.com/

WAVE file format
Detailed description of the structure and inner workings of Microsoft WAV file format.
www.sonicspot.com/

Original RIFF file format description
Contains original and updated RIFF file format specifications from IBM/Microsoft.
www.saettler.com/

Xbase File Format Description
Describes various Xbase file formats, including the data files and the index files. By Erik Bachmann.
www.clicketyclick.dk/