how do i play gba and ds roms on a ds lite? just place it(roms) on the micro-sd card and you're ready to play? thanks for the replies.
it depends on what flash card you have, some are just drag and drop, other need patching such as the supercard.
it should have came with the software disk. For r4, go google and dl r4 updateand unzip the file. then just drag it to the SD card For supercard, u need to dl whole lots of stuff, but since i have r4. i don't know much about supercard
Keep in mind that you can only play DS roms on the r4. Actually, you can only play DS roms from any of the DS slot cards. If you want to play GBA roms, you need a slot-2 card, like EZ-Flash III or IV, or something like that. If you want a rundown on all the different options, check out gbatemp.net or phwiki.org.