Filed under: HDTV, Home Entertainment, StorageToshiba's been demoing a triple-layer hybrid HD DVD / DVD system for a couple years now, but it's been all unofficial until today, when the DVD Forum steering committee voted to approve the spec as part of the official HD DVD standard. The third 15GB layer bumps the total capacity of HD DVD up to 51GB, matching Blu-ray's 50GB disks. Of course,
