Myst WDIB resources
WDIB resources store compressed images in the original Windows version of Myst, some images in Myst Masterpiece Edition, and cursors.
The data is laid out like this:
|unsigned long||uncompressed size|
For the compressed data, it uses the same LZ Compression as some tBMP's!
Once decoded, a plain uncompressed Windows BMP is recovered. All in the original Myst are 8bpp. However, some in Myst ME are 24bpp (like the images in Help.dat) but the cursors are still 8bpp.