- Extension
- .g4
- .aai
- Format
- Binary
- Binary
- Category
- Fax
- Raster Image
- Developer
- Computer Fax Systems (CFS)
- Dune HD
- Description
- Group 4 (G4) used for black and white lossless compression to maintain high-quality images, commonly used in TIFF format compression by fax machines. A picture is seen as black dots and lines on a blank page; the fewer the dots and lines are, the lesser the file size.
- AAI is a raster image file format associated with Dune HD media players. It is a simple uncompressed truecolor format, with support for alpha transparency.
- MIME Type
- image/g4fax
- application/octet-stream
