The following news cannot be disseminated without a sense of irony: 66 months since the initial release of the Catweasel ISA, we're publishing a free tool for writing disks with the controller. The alpha-version currently supports Amiga disks only, and it runs on DOS or in a DOS box of Win95/98. For easy porting to other operating systems, and for educational purposes, the source is included.
http://home.t-online.de/home/indcomp/bin/cw_write.zip
