i just came back from a store that was selling DVD-RW discs with up to 9+ Gb capacity, but no DVD-RW drives. i'm assuming there must be drives available for this. so has anyone had any experience with using these, or has anyone heard anything about the capabilities/compatabilities with pc recording? it seems like this would be a better idea that getting swappable hard drives. you could get just one drive and keep buying new discs for amazing storage capacity. right now the 9 Gb disc is selling for $50, but as i'm sure the price will fall at least some, this seems like an incredible alternative. thoughts anyone?