Hey, So I've used regular MDs in the past for soundtrack on film sets. It's quite handy for very mobile scenes. I'm thinking of switching to Hi-MD because as I understand it, records in PCM for higher quality. I'm also trying to find a good way to archive audio. So I'm wondering, can Hi-MD store .wav and or .aiff files? Also what it the life span of a Hi-MD disc in theory? I've tried finding the best way to archive audio. All magnetic tapes (analog and digital) have that hiss no matter how high the quality. Removable hard drives' disks stay intact but the compenets (such the USB port) can degrade. CD-R's decay and Gold seems to be long lasting but I haven't read any articles that guerantee that it's not a gimmick. MDs are almost like little hard disks, but of course regular MDs compress quite a bit. What I'm looking for is a format for master back-ups. If someone can tell me, "yes Hi-MDs support .wav and or .aiff" and "Hi-MDs have a long life span (at least 20 years)" thn I'l know that Hi-MDs are the way to go for proper archival. Any feedback would be awesome.