Do drives like the nec 3520 dvd-r,rw,... work ok under freebsd 4.x (9 or 10) as well as growisofs or do they require the 5.x branch? Last but least does rw media have good (or as good as r only media) longevity on the shelf (aka if the media is used for backups?). It seems that r and rw media is near the same price point? Thanks, Alan