EDIROL PCR-1 Driver Ver.2.2.0 for Mac OS X For Product(s): PCR-1 This is a driver for using the PCR-1 on Mac OS X. Compatible with Apple`s standards of CoreAudio and CoreMIDI Universal Binary This driver can work on both CPU, Intel processors and PowerPC processors. Single/Dual processor support Can customize buffer size in System Preferences Managing precise recording and playback latencies. You can correct the recording and playback timing in the applications that can recognize latencies. You can also adjust recording timing per bit of sample. For Operating System(s): MacOSX