Learn more about the Teacher Loan Forgiveness program, eligibility requirements, and how to apply. (If you aren't already logged in, you'll be asked to do so.) Note: You may not receive a benefit for the same qualifying payments or period of service for Teacher Loan Forgiveness and Public Service Loan Forgiveness.
What is Blu-ray? Blu-ray, also known as Blu-ray Disc (BD) is the name of a new optical disc format that is rapidly replacing DVD. The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data.
Storage Capacity. Blu-ray discs can hold up to five times the amount of data as standard DVD. A dual-layer disc can hold up to 50GB of data. This allows for a Blu-ray disc to offer 1080p high-definition video and lossless audio.tandard DVDs are recorded and read using a 650nm red laser. Blu-ray uses a 405nm blue-violet laser. This shorter wavelength allows the laser to be focused with more precision, which allows more data to be packed in the same space.