I've made rudimentary jigdo files available at:
http://mirror.tcs.ii.uj.edu.pl/jigdo/
i386: bin1of4 bin2of4 bin3of4 bin4of4 CDs binDVD srcDVD x86_64: binDVD
Usage requires replacing the [Servers] parts inside the jigdo files with an appropriate mirror (file:/, http://, ftp://)
This should allow recreation of the above mentioned files from any complete set of their contents (a mirror or DVD from CDs or vice versa).
(jigdo is available from dag/dries/rpmforge repo).
Cheers, MaZe.