Computer game software for PlayStation/SIMPLE1500 useful series:

“SIMPLE1500 useful Series” is the software based on the new concept to make good use of both CD-ROM and PlayStation. CD-ROM is such an interactive means the videos and books could not be and PlayStation is easier device than Personal Computer for people to operate. This series will help your daily life just as book and video used to do. You, however surely find this much easier than browsing a book, more interactive than watching a video and even enjoyable like games.
This series is highly appreciated to have presented another way to the software for PlayStation.