The latest Sony firmware for the DRU-700A has had the bitsetting removed. Sonys’ reason for this was to met the +R standard which does not include bitsetting . I’ll let you think about what the real reason might be.
Anyway, we have released a version on our site that has the bitsetting put back in again. It is the stock version with bitsetting added, so you will need to use the OmniPatcher to add any other speedhacks you might want.