OK, here’s a byte-by-byte run-down of a file entryģ2 byte header – byte 0 and byte 1 represent some sort of ID. file system entry should always exist in the psu file. This entry contains a count of the # of files expected to be contained within its directory.
The first file system entry in any valid psu file is the name of the directory the remaining entries are to be located in.
A File System Entry in a psu is described as follows:ģ2 byte header (contains count of files in psu/file size, creation date, mod date etc.) – 32 byte x – 448 bytes reserved for entry name (unused bytes are 0x0h) – file content OR 0 bytes if directory entry – filler bytes to make file content block multiple of 1024 (most often 0xFF, 0xCD or 0x00)
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