For those of you who have both the Deluxe Edition OST and the OST that comes with the upgraded game tiers, this little piece of information pertains to you. While the Deluxe Ed OST has 43 songs to the 18 in the original OST, there really is no need to hold onto the first 18 in the Deluxe Ed as they are duplicates and encoded in an inferior standard. The added resolution of 24-bit audio in the regular OST is noticeable if you have a nice setup. I wish the entire Deluxe OST was 24-bit, but oh well. This only pertains to the FLAC versions, I haven't checked the bit-rate of the MP3 copies, so they may be identical there, but the MP3s are all 16 bit. This will at least help you save a couple hundred megs or so of storage space by getting rid of the duplicate files.