Question: Does HP provide updates for HP DVD writers to enable double-layer media recording?
Answer: No. HP DVD writers specifically designed for recording to double-layer media can write to double-layer discs.
Question: Is double-layer media compatible with my DVD player?
Answer: HP's testing shows compatibility to be at approximately 90%. Some older DVD players cannot read some double-layer discs.
Question: Can my my older DVD writer read burned double-layer discs?
Answer: Maybe. Certain DVD writers may need an upgrade to read from recorded double-layer discs.
Question: Can I copy movie discs to dual-layer discs?
Answer: HP does not support the copying of commercial, copyrighted material.
Question: Can I add additional data to a double-layer disc?
Answer: Yes. Recording software that came with your computer can use multi-session recording, allowing data to be incrementally added to a double-layer disc.
Question: Why is the capacity of a double-layer disc not equal to the capacity of two single-layer discs?
Answer: The laser focuses on one layer at a time to read or write data, light reflection from one layer always causes a small amount of interference with the other. Because of this, capacity of each layer is reduced by approximately 10%.