[DirectX October 2006 Documentation] Opaque and 1-Bit Alpha Textures (66.1586452762923%)

DirectX Graphics > Direct3D 9 > Programming Guide > Getting Started > Direct3D Textures > Compressed Texture Resources

[DirectX 6 Programmer's Reference] Opaque and One-bit Alpha Textures (52.1855459355459%)

DirectX Foundation > DirectDraw > DirectDraw Essentials > Surfaces > Compressed Texture Surfaces > Compressed Texture Formats

[DirectX 7 Programmer's Reference] Opaque and One-bit Alpha Textures (52.1855459355459%)

Microsoft DirectX 7.0 > DirectDraw > DirectDraw Essentials > Surfaces > Compressed Texture Surfaces > Compressed Texture Formats