You may need to change the DMA setting. See this Sony support page:
http://sony.storagesupport.com/cgi-bin/sonysupport.cgi/GsXHyE-UIJuRi5ng3IH3i
GtUsL7DeR4V/faq/view/718
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I attempted to installed a Sony DRU-510A CDRW/DVD+-RW device and it would
either hang the system or read only a partial directory of a burnt cd. It
would not even read the original install dvd disk that came with it. It
would read though an original commercial audio music cd.
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