For SNES at least, GoodTools isn't the gold standard anymore. GoodSNES hasn't been updated in about 4 and a half years, and a fair number of new dumps and, more importantly for most people, verifications have come out since then. If you ever try to catalog your ROMs, I would strongly suggest using either NSRT, which can be had at
http://snesemu.black-ship.net/index.php?page=tools, or the
No-Intro SNES database. NSRT would probably be your best bet, because not only is its database not quite as out of date (more like a little under two years), but it gives more information about your ROMS than GoodSNES, doesn't include stuff like bad dumps and overdumps, and can manipulate your ROMs in more ways (e.g., it can fix some known bad dumps and has better overdump detection). No-Intro's database is even more up-to-date, but you'll have to set up either
clrmamepro or
Romcenter to use it.