Download DVD Indentifier from the web. It's free. I'm not familiar with your Sony drive. It may or may not allow you to set booktype to the DVD-ROM format. If the drive is new, then you may want to repost at the Lite On forum. Some Sony drives are made by Lite On.
If the Sony drive DOES not support bitsetting, then try DVD-R media. This may work with the cheap Apex.