Complex sentence: It supports a data transfer rate of 72 Mbit/s (2x) for both reading and writing making it possible to record over two hours of a high-definition (HD) video (at 24Mbit/s transfer rate) on a single disc.
Split into simpler sentences: It supports a data transfer rate of 72 Mbit/s (2x) for both reading and writing. It is possible to record over two hours of a high-definition (HD) video (at 24Mbit/s transfer rate) on a single disc.