Philips BD-R 25GB 4X Blu-ray recordable disc offers 25 gigabytes of write-once storage capacity. It records and playbacks high-definition video (HD), as well as storing large amounts of data. A single-layer Blu-ray disc can hold 25GB, which can be used to record over 2 hours of HDTV. Blu-ray uses a blue-violet laser to read and write data. The high quality white printable surface offers full-surface printing for high-resolution photo quality images. It is compatible with leading brand Blu-ray drives and ink-jet printers. Philips, the inventor of the CD/DVD technology also the Blu-ray standards committee member offers high-quality, highly reliable media.