I work for a church and I am thinking of a way to perminantly archive our church service audio (possibly video in the future). Cassettes are not good long term and neither are CDs/DVDs. What do you guys think of using a 500GB (basically two 250GB drives) Raid 1 and put an Apple Lossless file on there. With Apple Lossless I can maintain high quality yet still get 1.5 years of services on a single 250GB drive. Should last a long time and when a new technology comes around, it's easier to copy the files from the HD than rip thousands of CDs all over again. Your thoughts?