Problem with multi disc game(First Kiss Story2)

[chth96]

I just have found that When I play First Kiss Story2 disc1 with retrodream(in order to load FKS2 save data which has disc swap point, push start button, then select second option(続きから) and select slot10), It got to the point where it require to insert disc 2, Unlike sakura wars 3, It is impossible to get disc swap point without loading disc1 gdi file of Frist Kiss Story2.

I uploaded vmd image file of my vmu cartridge which is compatible with flycast emulator and dreamshell's vmu manager and the same save data with youtube video.
https://www.dropbox.com/s/6j1kr45mi5z60k...10.7z?dl=0





Is there any way to swap disc2 in retrodream or dreamshell while it load disc1 gdi file?