
HD-DVD and Blu-ray both feature very large storage capacities and high data transfer rates, making them ideal for consumers interested in recording high definition TV shows, sporting events and movies in crystal-clear, high-definition resolution. Both formats also offer high capacity storage capability for all data storage needs. The HD-DVD format supports 15GB of capacity on a single layer and 30GB on a double layer disc, while Blu-ray DVDs support 25GB of capacity on a single layer and 50GB on a double layer disc. In contrast, today's standard DVDs store up to 4.7GB on a single layer or 8.5GB on a double layer disc.