Just saw an
article that runs the new Sony DRU-700A through a few tests. Results: You might want to wait on dual-layer technology to mature for a while. The disks themselves are unobtainable for the moment, and when they become available they will be expensive and slow (2.4x burn rate max). Plus, the reviewer found the burned disks wouldn't play on a couple of devices. Price is about $200, and they say it's a decent single-layer burner.