I can see from the comments above why this hobby is sometimes considered a disease (audiophilia). Working as a data network engineer for 11 years now, I see no need to have a RAID 5 system in a home audio setup. Why would you want such a rapid recovery of data in a home environment where there are no customer service issues to deal with? Why would you want to keep your PC on 24/7 if you are not running a music/TV studio?
Just buy one extra external HD for backup. If you are paranoid, buy a third HD and keep it at your Mom's house (or better yet, at the Federal Reserve Bank!). Remember your CDs also count as a backup set.
Just buy one extra external HD for backup. If you are paranoid, buy a third HD and keep it at your Mom's house (or better yet, at the Federal Reserve Bank!). Remember your CDs also count as a backup set.