IMG Scan file format

IMG Scan raw data files    *.RWL
                           *.RWH
                           *.RAW

extension    pixel w/h     size in bytes    imgscan.prg version
*.RWL        320x200       64000            < 1.84
*.RWH        640x400       256000           < 1.84
*.RAW        640x200       128000           => 1.84

Image date is always 256 shades of gray, where 0=white and 255=black                

From the IMG Scan v1.84 Addendum:
Raw data files have been standardized to 128000 byte files for all resolutions. This
means that a raw data file (".RAW") can be loaded and saved in any screen resolution.  
The files are saved as 640*200 and 8 bits per pixel.

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