the official buffalo 8.29 firmware has auto bitsetting as well; TDB just makes it region free. but you might as well use the TDB to make things easier.
download Pioneer 111L 8.19 and 8.29 firmware from here (http://tdb.rpc1.org/). flashing to 8.19 will crossflash your drive to a 111L (make sure you reboot after you flash to 8.19). then, flash to 8.29. you must flash to 8.19 first, as 8.19 includes the kernel which crossflashes your drive.