Hi! I managed to decode the scan data of my Canon LiDE 600F.
Image can be found here: http://www.juergen-ernst.de/info_sane.html#5 Colour scan: Each line of the image is a block which has a line with red data, a line with green data and a line with blue data pixels. Block is padded to a multiple of 128. Blocks are repeated as much as needed. That's it. Grey scan: image data is same as color scan. Different handling seems to be made only by postprocessing in vendor software. -- Ciao J?rgen Microsoft is not the answer. Microsoft is the question. "NO" is the answer.
