Pioneer introduced a pair of Blu-ray writer drives capable of writing 100 GB Blu-ray XL discs, under the BDR-PR1M series. These include the BDR-PR1M base model, and BDR-PR1MA, which is designed with additional error-correction layers, that minimize writing errors. The drive is capable of write speeds as high as 4X for Blu-ray discs, 6X for DVDs, and 16X for CDs. Single and double-layer Blu-ray discs are read at 8X, BDXLs at 4X, DVDs at 16X, and 40X for CDs. The drives feature standard SATA interface.