once i've downloaded my ds games, will they just drag and drop for playing?

i've got a ds and a chipped card and i want to know if the ds games i download on here will just play with the card i have or will i have to download new files to run them and will the new files interfere with the other ones i'm using?

you will have to periodically update the firmware on your flashcart otherwise you will find newer games do not run, new firmware files replace your current ones. Additionally, you will need winrar (www.rarlabs.com) installed on your PC to extract the roms you download from the archive files they are in.

thanks, do i download the updated firmware from here?

no, you get firmwares from www.linfoxdomain.com/nintendo/ds Make sure you get the correct one for your flashcart.