Sony VGN-A790 Notebook DW-D56A DVD?±RW Optical Drive Firmware Update Utility PFS3 Windows XP. This utility updates the firmware of the Sony DW-D56A DVD?±RW Optical Drive to version PFS3 and improves the read and write capabilities of the drive.Supported Models:PCG-K35, PCG-K37, PCG-K47, VGC-V500MG, VGC-V517G, VGC-V520G, VGC-V600MG, VGC-V617G, VGC-V620G, VGN-A230, VGN-A230B, VGN-A230P, VGN-A240, VGN-A240B, VGN-A240P, VGN-A250, VGN-A260.VGN-A270, VGN-A270B, VGN-A270P, VGN-A290, VGN-A290F, VGN-A600, VGN-A600B, VGN-A600P, VGN-A690, VGN-A790, VGN-FS500, VGN-FS500B, VGN-FS500P, VGN-FS520B, VGN-FS530B, VGN-FS540P, VGN-FS550.VGN-FS550F, VGN-FS550P, VGN-FS570, VGN-FS630F, VGN-FS650F, VGN-FS655FP, VGN-FS670FG, VGN-FS680, VGN-FS680W, VGN-FS690, VGN-FS690B, VGN-FS690P.