If the password of OS2XL is entered, the password of OS1 is unnecessary.
Sale of the password of only OS1 has not been carried out now.
Moreover, support of OS1 was ended.
Therefore, even if a bug occurs, it does not fix.
Support of OS3 Ver.1.52 was ended.
Support of OS128XL Ver.1.81 was ended.

JJ OS Comparison Chart

Name Version File name Size Available Upload day
Free 3.16 mpc1000_jv316.bin 734KB Download Feb 16, 2015
OS1 5.00 mpc1000_jv500.bin 896KB Download May 08, 2013
OS3 1.52 mpc1000_jv152.os3 1213KB Download Jan 24, 2017

How to Install OS1

Exchange video to large LCD
OS only for large LCD (240X128) (Please refer to video.)
OS128XL is installable only from OS128ORG bundled with large LCD.
Name Version

File name

Size Available Upload day
OS128XL 1.81 mpc1000_128xl181.osl 1316KB Download Jan 24, 2017
OS only for large LCD (240X128)
OS128SP is installable only from OS128XL. (Please refer to video.)
(Support of OS128SP was ended)
OS128SP 1.11 mpc1000_128sp111.osl 1349KB Download Aug 01, 2017
 
It is free software to operate a cursor of the MPC with a mouse. (Refer to video)
OS Supported jjos Version

File name

Size Available Upload day
Windows XP/7/8.1/10 OS2XL/OS3/128XL 1.02 MPCMOUSE.zip 34KB Download Aug 23, 2014

JJOS manual

Online PDF
OS128SP  
OS128XL & OS3 (Ver.1.0) OS128XL(Ver.1.0) 10.9MB
---------- OS128ORG 0.1MB

OS128SP (Install is free)

When it is MPC into which the password of OS128XL is entered, all the functions including a save mode can use without restriction.
When it is MPC into which the password of OS128XL is not entered, it cannot go to save mode, but all other functions can be used without restriction.
When you want to display save mode, please purchase the password of OS128XL.
The product ID and password are the same as those for OS128XL, so there is no need to install OS128XL.
The enter of a password can also be performed from the screen of OS128SP.

OS128SP is OS with a function equivalent to OS2XL.
A function and specification are the same as OS2XL.
However, OS128SP does not have the following function.
There is no VIEW mode of GRID.
There is no Line Pattern mode of GRID.
The value of the parameter of an effect is uncontrollable by a MIDI controller.
Compatibility is the same as OS2XL.
A part of modes are standard screens
Refer to the manual of OS2XL for a manual.

Comparison with OS2XL
Comparison with OS128XL