SCR (ZX Spectrum)

File Format
Name	SCR (ZX Spectrum)
Ontology	Electronic File Formats Graphics SCR (ZX Spectrum)
Extension(s)	.scr, .hrg
Released	1982

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.

A ULA+ version .scr is exactly 6976 bytes in size.

A Timex 2048 Hi-Color version .scr is exactly 12288 bytes in size.

A Timex 2048 Hi-Res Gigascreen version are 512x384 pixels in size, has a .hrg extension and is exactly 24578 bytes in size.

Specifications

• SCR screen format

Software

• ImageMagick (format named "SCR")
• Konvertor
• XnView
• SCRplus
• Farbfeld Utilities
• RECOIL

Sample files

• ZXscrconv-0.2.tar.gz (FTP HTTP) → scrs/*.scr
• EXAMPLES.TAP
• zxart.ee
• dexvert samples — image/zxSCR
• dexvert samples — image/zxULAPlus
• dexvert samples — image/zxMonochrome
• dexvert samples — image/timexHiColor
• dexvert samples — image/timexHiResGigascreen

Links

• http://www.worldofspectrum.org/faq/reference/formats.htm
• Speccy Emulator File Formats (from archive.org)
• ZX Spectrum computers from the 1980s to be made again in Beeston

Editors' notes

TODO: There are a number of variants of this format, some of which are mentioned here.