The 5 pack of Sony BD-R Blu-Ray Recordable Disc 6x 25 GB with Slim Case is a pack of Blu-Ray recordable discs. Each features a record speed of 1-6x and a storage capacity of 25 GB. That's enough for up to 5 standard DVDs on one disc! Record 23 hr of standard definition television or tens of thousands of music recordings on each disc. The media has archival reliability for long-term storage.