How many space those Nintendo DS card have?

[CHfan4ever]

500 meg? 1 gig ?

They are same format( i think) of those SD mmc disk, so im wondering if the size of the cartrige are only as big as the programemr wanted( ean if 2 gig disk are available they will choose 2 gig if they like to)

 

[Slick5150]

I believe the DS cartridges max out at 128 megabytes, but could be larger if needed down the road.