Q: Were can i download this for the r4 ds? i need to download this_DS_MENU.DAT, so i can use my r4 because i lost my disc
A: Not sure what version kernel you're using, but you might as well upgrade it to the latest kernel. Here's the latest firmware for the R4DS: http://www.r4ds.com/soft/english2/English-1.17.rar Just download it, unRar it and copy the contents onto your microSD.