Optical Quantum OQBDR04LT 25GB 4X BD-R Blu-ray Disc (25-Pack) for $16.99 shipped. Here is a screenshot for your reference. This Blu-ray disc can record over 2 hours HDTV or 10 hours of DVD/TV quality video with 4X data transfer rate. It has of 5 times the capacity of a standard DVD disc. Most places have it for about $24 and more.