SCR (ZX Spectrum)
SCR (also called ZX-Spectrum SCREEN$) is a raster image file format used on ZX Spectrum computers, especially for screen shots. It is really just a dump of the computer's video memory.
Images are always 256×192 pixels in size, and can have up to about 16 colors. Files are exactly 6912 bytes in size.
- Speccy Emulator File Formats (from archive.org)
- ZX Spectrum computers from the 1980s to be made again in Beeston
TODO: There are a number of variants of this format, some of which are mentioned here.