Traumers wiv some games!

[Stress]

alright people,

i've download a couple of games, burn't them, but they dont work. they ####t making the noise on the DC as if there selfboot but then they go back to the screen with the memoery card and stuff on. i've tried these with the boot disk but they still don't work. i've also looked for patches for them as i play them on a pal machine but none are available? any suggestions?

the games are:-
sonic adventure 2 (echelon) applied the patch that came with it.
stupid invaders cd1 & cd2
evil dead - hail to the king or something
gauntlet legends - applied the patch from this site but then disk juggler wouldn't recognize the .cdi image

i'd just like to add that i'm no newbie to this, i've downloaded and burnt over 160 dreamcast games & over 150 psx games

cheers for any help

laterz