help needed badly!! psx2 copy game?

[NlPsxCopy]

hello i have a question ?
im looking for the answer all day!
i buyed a dvd writer to day and i have a psx 2 console with mod chip + dvd region x cd i use dvd-r cd to make a back up of the game and yes i did look if the game was a cd-rom or a dvd-rom
but ok here it is :
i made a copy of gta4 the copy was ready and i tryed to let it play in my psx2 but for one reason i can't get my own back up to play ...
i have a few copyed games and they all work but now that i have a dvd writer and i copy my own games it isn't working plz help me with this !! :confused:
thx

[bighap]

I need some more info. What burner? What media? What program and steps did you use to make the backup? What mod?

[NlPsxCopy]

it says i have a _Nec DvD+RW ND-1000a / dvd writer
and i use the program i did get with the writer / stomp software :
record now . i did a direct copy bt my mod (( don't know i let some one els put it in to my psx2 but i need to use a dvd region x cd to play my back up games don't know if you have enof info now may you can tel me what software you use and step by step how u burn them?
thx