SMD files exist as 2 different types. Please find information about each of them below.
Type 1: Valve Studiomdl Data File
General Information
| Title | SMD File Extension |
| Extension | .smd |
| Full Form | Valve Studiomdl Data File |
| File Type | 3D Model Data File |
| Developer | Valve Corporation |
| MIME Type | text/plain |
File Function
| Primary Function | Store model data |
| Additional Functions | Define geometry, Reference textures |
| Features | Supports animation, Bones data |
File Characteristics
| Quality | Game-specific |
| Supports Layers | No |
| Supports Transparency | Via materials |
| Editable | Yes |
Use Cases
| Game Modding | Yes |
| Game Development | Yes |
| 3D Animation | Yes |
Security and Practices
| Security Risks | Script execution |
| Best Practices | Validate files, Safe sources |
Historical/Version Information
| Initial Release | 1990s |
| Latest Version | Varies by tool |
Associated Types
| Similar Extensions | .mdl, .bsp, .vmf |
Software Compatibility
| Software | Usage Policy | OS Compatibility |
|---|---|---|
 Valve Hammer Editor |
Free | Windows |
 Blender with SMD Tools |
Free | Windows, Mac, Linux |
 Half-Life Model Viewer |
Free | Windows |
Type 2: Sega Mega Drive ROM
General Information
| Title | SMD File Extension |
| Extension | .smd |
| Full Form | Sega Mega Drive ROM File |
| File Type | Game ROM File |
| Developer | Sega |
| MIME Type | application/x-genesis-rom |
File Function
| Primary Function | Store game data |
| Additional Functions | Emulation support |
| Features | 16-bit, Console gaming |
File Characteristics
| Quality | Native quality |
| Supports Layers | No |
| Supports Transparency | No |
| Editable | No, Binary |
Use Cases
| Game Emulation | Yes |
| Software Testing | Yes |
| Historical Preservation | Yes |
Security and Practices
| Security Risks | ROM hacks, Piracy |
| Best Practices | Legitimate sources, Anti-virus |
Historical/Version Information
| Initial Release | 1988 |
| Latest Version | Depends on game |
Associated Types
| Similar Extensions | .gen, .bin, .md |
Software Compatibility
| Software | Usage Policy | OS Compatibility |
|---|---|---|
| Kega Fusion |
Free | Windows, Mac, Linux |
| Gens |
Free | Windows |
 RetroArch |
Free | Various |