Cryo/File formats

Cryo file formats

EDEN.DAT

Contains all game data files. Can be extracted using the extract_cryo tool from scummvm-tools.

The file starts with a 16-bit value containing the number of files in the archive. This is followed by an array of the following structure containing information about each file:

Offset	Size	Description
0	16 bytes	The file name
16	4 bytes	The offset of the file within the archive.
20	4 bytes	The size of the file.
24	1 byte	Unknown.

The rest of the file contains the uncompressed data for each file. All values in the header are little endian. Note that the engine currently ignores the file names, and instead looks up each file by number, so care has to be taken to preserve the file order when creating archives.

*.HNM

Used for FMV sequences. Most DOS videos and all Mac videos use HNM4, while the logos and credits videos in the DOS version uses HNM (1) instead.

*.VOC

Used in the DOS version for speech and sound effects. Uses a standard Creative Voice container with a custom text block containing lip-sync data.