Support of OS3 Ver.1.52 was ended.
Support of OS128XL Ver.1.81 was ended.
Support of OS128SP was ended

 
Name Version

File name

Size Available Upload day
OS3 1.52 mpc2500_jv152.os3 1310KB Download Jan 24, 2017
 
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 mpc2500_128xl181.osl 1421KB Download Jan 24, 2017
OS only for large LCD (240X128)
OS128SP is installable only from OS128XL. (Please refer to video.)
OS128SP 1.10 mpc2500_128sp110.osl 1458KB Download Aug 01, 2017

JJOS manual

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

OS128SP is free. (However, it restricts to MPC into which the password of OS128XL is entered)

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.

OS128SP is OS with a function equivalent to OS-XL.
A function and specification are the same as OS-XL.
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.
The "Input" field of a RECORD does not have selection of CD.
Compatibility is the same as OS-XL.
A part of modes are standard screens
Online manual (OS-XL & OS128SP)

Comparison with OS-XL
Comparison with OS128XL