2014-05-16 I'm still working on the conversion of the scanned version of ``Limits to Growth''. Today, I took the quick and dirty way: I used the Gimp to crop the two pages of the World Model. I export- ed them as PDF. Then I used psselect(1), pdfseparat(1) and pdfun- ite(1) to assemble all the stuff. (For pdftops(1) I needed to add `-paper match' to get the right page size.) I wasn't able to automate everything. Eventually, the pareto principle came to life: I automated about 80% and did 20% by hand. This was most effective. There are huge differences in the reading speed of the DVD drives in my notebook and the the desktop PC. The latter one is much faster and has less problems reading old disks. All my DVD writers are able to burn DVD-RAM as well. Sadly, this standard is hardly known and used. Actually, it's quite nice. I do have some DVD-RAM disks. Today, I used them again, after a few years. Simply mount them, as if they were hard disks: mount -t udf -o rw /dev/sr0 /media/cdrom To format them once when they are fresh, you need the `udftools': mkudffs --media-type=dvdram --udfrev=0x0150 /dev/sr0 http://marmaro.de/lue/ markus schnalke