.SCP files usage in WinUAE

[admin]

With the preservation mode disabled, image files can be compressed dramatically. For example, Space Station Oblivion (which uses a nasty variable density protection) is about 13MB as a flux image. In preservation mode, the image compresses to ~3.2MB. In non-preservation mode, the image compresses to ~880K. Both versions work fine under the emulation, and both versions actually write to disk correctly - although it's not a guarantee with the non-preservation mode image.