Thank you for testing It saves time on my side. Are you using a BIOS in yabause settings ? Using SEGA BIOS makes save data 99% safe under Yabause, while using Yabause internal BIOS functions (= not setting path to BIOS) may cause problem. And theses save data were created by hand with hex editor, so I guess the problem is me rather than Yabause I will modify my Save Game Manager in order it automatically converts Planetweb images and saves to Saturn internal memory. It may require around a week on my side in order to code this so please be patient. After coding the convertor, I will send you bkram.bin generated by it, so I may ask for re-test on your side. In advance, thank you After that, I will first release converted save data, so that everybody can convert them, and then (a couple of months after or so) Save Data Manager itself.