Sony PDWU1 User Manual (PDW-U1 Professional Disc Drive Unit Operation Manual F - Page 33

Overview 1 Chapter Chapter 1 Overview 1-1 Features The PDW-U1 is a compact and lightweight disc drive which, when connected to a nonlinear editor, enables reading and writing of video and audio data. In combination with a laptop computer, it can be used in the field, and together with a nonlinear editor, it provides an ideal inexpensive video production system. The features of the PDW-U1 include the following. Support for all XDCAM formats Reading and writing are supported in all formats adopted by the XDCAM 1) series, that is, MPEG HD422, MPEG HD, MPEG IMX, and DVCAM, in addition to all bit rates. 1) XDCAM is a trademark of Sony Corporation. Support for mixed format recording mode As long as the frame frequency group is the same, clips in different recording formats can be recorded or written to the same disc. 1) The system frequencies supported by this unit are divided into frame frequency groups, as shown in the following table. 1) The recording format is regarded as different whenever the system frequency, video resolution, video codec/bit rate, or number of audio channels or number of bits does not match. Frame frequency System group frequency 59.94Hz 59.94P 59.94i 29.97P 50Hz 50P 50i 25P 23.98Hz 23.98P You can record clips with different recording formats, for example HD422 and HD420SP clips, by putting this unit into mixed format recording mode. Note Continuous playback may not be possible at the transition point between two clips with different recording formats. Support for dual-layer discs This unit supports single-layer (23.3 GB) and dual-layer (50 GB) discs. IT-friendly system through USB interface The interface is the very widely used highspeed USB (USB 2.0), enabling easy connection to a computer. The PDW-U1 can be used in the same way that an external drive is used to load data files from the 33 1-1 Features