Hi all, I want to switch from SL 6.2 to SL 7.4 (fresh install, not upgrade). In http://ftp.scientificlinux.org/linux/scientific/7x/x86_64/iso/ I see several iso files, but cannot understand which one fits my needs. I would like to keep a bootable DVD (not dual layer) copy and a live disk. Which are the right files to download? Thanks -- Elio Fabri