Changes

The file structure in a nutshell is a header (HEADER), followed by a (SIGNATURES) block, followed by a list of variable length files, and finally ending with an index of the files (INDEX). The index is a list of variable length entries (INDEX_ENTRY). The signatures block is a list of variable length entries (SIGNATURE_ENTRY).

HEADER

4 bytes : MARID - "MAR1"

4 bytes : OffsetToIndex - offset to INDEX in bytes relative to the start of MAR file

SIGNATURES

4 bytes : NumSignatures - Number of signatures

''NumSignatures SIGNATURE_ENTRY elements''