The Sony PDW-U4 XDCAM Professional Disc Drive is an external drive for XDCAM Professional Discs, whether recording in SD or HD. The drive supports single-, dual-, triple-, and quad-layer disc media. In addition to using 128GB write-once disc media, the drive also supports legacy 23, 50, and 100GB rewritable media.

The PDW-U4 features a significant increase in speed over its predecessor, the PODW-U2, which translates to 2x faster read seed and 1.7x faster write speed. Files on the drive can be accessed by both Mac and Windows computers via a USB-C connection.

• Supports XDCAM HD422, XDCAM HD, XDCAM SD, DVCAM, MPEG IMX, MPEG HD (4:2:0), and MPEG HD422
• Direct access to files on Sony XDCAM Professional Disc media from a USB-connected PC
• SuperSpeed USB 3.0 interface, backward compatible with high-speed USB 2.0 interface
• Supports 128GB write-once XDCAM Professional Disc, backward compatible with 23/50/10GB rewritable single-, dual-, three-, and four-layer XDCAM Professional Disc media
• Supports Windows and Mac via VFAM (virtual file access mode) driver