Both Philips and MKM regard the introduction of dual-layer DVD+R technology as the next important milestone in the drive to continually improve and expand the optical data storage options available to consumers. Users will benefit from the additional storage capacity of the DVD+R disc as it will enable them to record 4 hours of DVD-quality video or 16 hours of VHS-quality video, without the need to turn over the disc. PC users will be able to archive up to 8.5 Gbytes of computer files on a single disc, which almost doubles the storage capacity compared with the 4.7Gbytes for the single-layer DVD+R discs currently available.