Both Samsung Saturn discs came with the purchase of Samsung Saturn from Korea. So got lucky!

High C Compiler (got lucky it went low!)  ヤフオク! - FM TOWNS フリーソフトウェアコレクション8 High... (yahoo.co.jp)

Linux JE CD ROM  駿河屋 -<中古>日本語Linux 0.99pl12+JE（FM-TOWNS） (suruga-ya.jp)

Slackware Linux JE  駿河屋 -<中古>Slackware Ver.2.0+JE0.9.5 日本語Linux+JE3 （FM-TOWNS） (suruga-ya.jp)

Maester Music CD (This disc has disc rot)ヤフオク! - レア FUJITSU FMTOWNS CD-ROM 名曲ますた～ 名曲... (yahoo.co.jp)

Kuchisuu no Oui Windows   Six Floppy discs   ヤフオク! - レア FUJITSU FMTOWNS CD-ROM 名曲ますた～ 名曲... (yahoo.co.jp)

Thats Toukou Part 2   (18+)  THAT'S Post PARAT2 Amateur Post CD-ROM - Japan Shopping & Proxy Service (zenmarket.jp)

FMR / FM Towns DOS Tools Book.  Came with 2 floppy   ヤフオク! - FMR/TOWNS/基本DOSツールズ （ディスク付き） 書籍 (yahoo.co.jp)

Ningen Konchuu ~Nozoki~                       

                                 WARNING: 18+  NOT PICTURED     駿河屋 -【アダルト】<中古>人間昆虫 覗き（PC-9801） (suruga-ya.jp)

I also bought several magazines to be scanned by my friends at @GamingAlexandria.  I will make another post later on.