I have a Sony DW-Q58A DVD+-RW burner Firmware: UDS2 (latest from Dell) in a Dell Latitude D620 laptop running Win XP SP2. Using Sony DVD-R media code: SONY16D1 I have a number of these DVD-R media burned on a BTC-1008 burner on my desktop. I used the DVDInfoPro Bitsetting feature to change the book type to DVD-ROM. No problem reading these disks anywhere else, just on this Sony (Lite-On) drive. Drive reads other DVD-R's fine, so long as the Book Type was not reset. Any ideas, please? Thanks.