Buffer: 8 MB Manufacturer: Panasonic Type of Device: BD-RE Interface: ATAPI. Writing speed: BD-R Dual Layer 1x BD-RE Dual Layer 1x BD-R 2x BD-RE 2x DVD+R9 Dual Layer 2.4x DVD+R 8x DVD+RW 4x DVD-R9 Dual Layer 2x DVD-R 8x DVD-RW 4x DVD-RAM 5x CD-R 8x CD-RW 8x. Reading speed: BD-ROM 2x DVD-ROM 8x CD-ROM 24x. Supported Formats: BD-ROM read BD-R read/write BD-RE read/write HD DVD-ROM not support HD DVD-R not support HD DVD-RW not support DVD-ROM read DVD+R9 Dual Layer read/write DVD+R read/write DVD+RW read/write DVD-R9 Dual Layer read/write DVD-R read/write DVD-RW read/write DVD-RAM not support CD-ROM read CD-R read/write CD-RW read/write . inner box with dimension of 21X17X8.2cm and gross weight of 500g,30pcs per outer carton.