DVRFLash 2.1.1 [Upd]

DVRFLash version 2.1.1 was released. It enables flashing all Pioneer drives under Mac OS X. It replaces the last version but the download link remains the same: DVRFlash_v2.1.zip.
Las Vegas who ported this software under OS X also made special versions of DVRFlashX which enable to flash Pioneer drives from 103 to 107 to the last region free patched firmwares and also to restore the original Apple firmwares:
For the DVR-103: DVRFlashX_Apple_103.zip
For the DVR-104: DVRFlashX_Apple_104.zip
For the DVR-105: DVRFlashX_Apple_105.zip
For the DVR-106: DVRFlashX_Apple_106.zip
For the DVR-107: DVRFlashX_Apple_107.zip
If you want to flash a 108 to be region free, the lasted patched firmware is 1.18:
DVR-108v1.18-RPC-1+12xRip+nx4all
[Upd] The special versions do not contain the latest firmwares but the latest Apple firmwares.