For the Marvel Nemesis: Rise of the Imperfects game it wont save on my Ds

Only certian games will work on the 360 from the orgninal xbox, here is the list of games:
http://en.wikipedia.org/wiki/List_of_Xbox_games_compatible_with_Xbox_360

there are different types of discs for the first xbox , the xbox 360 and the new xbox 0ne . you will just have to bye another game for the xbox 360

There is sadly some of the original Xbox games that isn't playable for a reason I do not know.

http://support.xbox.com/en-US/games/xbox-games/play-original-games
^Here is a link where you can see all the playable xbox games that are playable on the Xbox 360. If you can't find your game here, you cannot play it on the Xbox 360, I am sorry.

I beleive that is an error with save file. it wont allow saves therefore wont play the game. Is it a rom copy of the game or original?

It's the game that saves the game, not the DS

becase you turend it off

Check to see if it is bent or shake it and see if you here something rattling

is this the actual real game or a rom download, if its just the real game i would take it back to where you got it from and demand for a replacement as it is faulty, if there is anything else you need let me know and good luck.

not to be rude but did u read the manual you may be able to read it online some were

Yes the Xbox 360 can play regular XBOX games so dont worry. You can check for more info on the xbox website. http://www.xbox.com