The Blu-Ray Disc XL (BDXL) is characterized by an extremely high storage capacity. It consists of three or four storage layers and has storage capacities of 100 GB
. Recording and playback of BDXL discs can only be done with BD drives that have a BDXL logo. Ingeneral, BDXL drives can also play other Blu-Ray discs, but this is not necessarily stated in the standard
. BDXL is intended to be used for mass data storage, such as those found in medicine, weather and space research.