Pablito
coco frío
Alien Skin software's Blow Up is a similar program. I hear from colleagues it works quite well. Anyone here tried it? Of course this issue affects any digital file, not just M8 files. Personally, I have found I can print 12MP files 20" wide (horizontal, on 17x22 paper on an Epson 3880) at around 200 dpi and still get very sharp images with stunning detail when viewed close up.
Thanks all.