This change is in snd-6.tar.gz at ccrma-ftp and in the sourceforge CVS repository; there's a script "fix-bar" (I should have called it "foo-bar") that can change the names from the old to the new forms, (i.e. fix-bar *.scm or whatever). I also took the liberty of changing Dave Phillips' files in the contrib/dlp directory -- hopefully they survived intact.