A Playstation One CD can either be directly put into your PC via the CD-ROM drive or mounting a .BIN/.ISO file. All of these are just ways to be able to see the contents of a PS1 Disc similar to a folder of files.
| Extension | Description |
|---|---|
| .BIN | A BIN file needs a .CUE file in order to be useful, it is the raw binary contents of a PS1 disc |
| .CUE | A CUE sheet describes a .BIN file and can be mounted on a pc to reveal the file system of the disc |
| .ISO | A ISO file can be mounted on a pc to reveal the file system of the disc |
| .CHD | Compressed Hunks of Data (CHD) format intiially created by MAME can be used in most PS1 emulators |
| .PBP | Playstation Boot Package - PS1 games that run on the PSP (and also PS Classic) |
After mounting a PS1 Disc ISO/BIN/CUE you can view the file system of the Disc and you will see files with a variety of extensions, some of these extensions are standard across games and are listed in the table below.
| Extension | Description |
|---|---|
| .STR | Streaming Movie |
| .BS | MDEC Stream |
| .XA | Streaming CD-ROM Vocals |
| .RSD | 3D Model files |
| .TMD | 3D Model files (for PSYQ libraries) |
| .PMD | High speed Modelling data |
| .TOD | Animation Data |
| .HMD | Hierarchical 3D Model plus animation and other data |
| .TIM | 2D Image file |
| .SDF | Sprite Editor Project File |
| .PXL | Pixel Image Data |
| .CLT | Palette Data |
| .ANM | Animation informaton for 2D |
| .TSQ | Animation Time sequence for 2D |
| .CEL | Cell Data |
| .BGD | Background Map Data |
| .SEQ | Audio Sequence file |
| .SEP | Multi-Track Audio Sequence file |
| .VAG | Audio Wavefile |
| .VAB | Audio Source Data |
| .DA | CD-DA Data |
| .FAT | Memory Card File |
These formats tend to be only available in source code and relate to 3D models.
Most of these are human readable ASCII files apart from TMD which is optimised for the game itself and DXF which is generated by the original 3D modeeling application (e.g 3D Studio).
You can convert DXF to RSD formats using the tool DXF2RSD provided in the PSQ SDK.
| Format | Description |
|---|---|
| DXF | Drawing Exchange Format, Standard 3D model format used in a variety of 3D software such as AutoCAD and 3D Studio |
| RSD | Format used in the 3D Graphics Tools while artists are editing |
| PLY | Polygon vertices information (coordinates) |
| MAT | Material (Texture) Information |
| GRP | Group of Polygon information |
| MSH | Mesh, information on how polygons are linked together |
| PVT | Pivot file used for rotation information |
| COD | Coordinate for Vertex data |
| MOT | Animation information |
| OGP | Vertex grouping information |
| TMD | Format used by the game itself, MD is Modelling Data (What does the T stand for?) |
