D2 ntsc usa could work on dreamcast pal with utopia?
 

sorry for my bad english.
i've just buy an original copy of D2.
the format of the game is ntsc usa.
i've a dreamcast pal unmodified, and so i use utopia boot.
the game work perfectly, but D2 is a multidisks-game (4 gd rom)
when the game ask me to change disk, for example from 1 to 4, the dreamcast could recognize the new disk that i've put in.
why? the utopia boot reach to start the game, but when i've to change the disk to continue the adventure the message says: "this is not a dreamcast game, please insert D2 disk".
so, utopia boot don't work with imported multidisks-game? or is there a solution for an unmodified dreamcast?
thanks

If the game saves to the memory card before it asks to switch discs, try shutting down & reload the Utopia boot disc, followed by the disc it asked for. It should reload the savefile from the memory card, and in theory the game should continue where it left off.

i'll try it.
do you have the same problem?

I haven't tried any multi-part game backups other than Stupid Invaders and it was a bootable and the disc-switch worked ok. My suggestion was based on someone else's message from a couple of weeks ago where they said this fixed that problem on one of their multi-disc games.