Edirol PCR-300 (2004?) compatible with win98+ and mac osx+

[chrisNova777]

https://www.roland.com/us/products/pcr-300/
https://static.roland.com/assets/media/pdf/PCR-300_500_800_OM.pdf

supported os:
win98/ME, XP/2000, XP64, Vista 32/64, Win7 32/64, osx 10.6, 10.8, 10.9

PCR Driver Version 1.2.0 for Mac OS X
This is a Universal Binary MacOS X driver for the PCR-30 / PCR-50 / PCR-80 / PCR-M1 / PCR-M30 / PCR-M50 / PCR-M80 / PCR-300 / PCR-500 / PCR-800
Compatible with Mac OS X v10.5 "Leopard" as of OCT. 26, 2007

this driver should work for earlier versions of PPC OSX
according to the release date, i would say it supports 10.4 (TIGER) + 10.5 (LEOPARD) but also possibly 10.3 (PANTHER) if u got it working on panther please post to confirm!

this particular pcr- does not mention compatibility with mac os 9
but there is a driver for the pcr-50+pcr-30
i would investigate that one to test because the products are similarly grouped in the driver info above
https://www.roland.com/global/support/by_product/pcr-50/updates_drivers/4d059fb8-f6d0-4aa4-abe9-0bff3f9378f5/
"PCR DRIVER VERSION 1.0.0 FOR MAC OS 9
This is the driver for using the PCR with FreeMIDI or OMS.