The Sony BNE-25B BD-RE 25GB Blu-ray Recordable Disc is a rewriteable, single-sided, single layer disc. The disc records 25GB of data on a single sided disc. It records up to five standard DVDs on one disc. The disc delivers higher definition picture and sound quality with storage capacity and recording flexibility for content owners and consumers alike. It uses Scratch Guard hard coating to protect the disc against scratches and prevents dust and stains.