Nintendo 3DS title download URL:
http://nus.cdn.c.shop.nintendowifi.net/ccs/download/<title_id>/ (does "ccs" instead of "nus" make a difference?)
then one of these:
tmd<.title_version>
cetk
Content ID (8 letter hex number or something)


Title ID highs:
00040000 - normal app
00040002 - demo
0004008c - DLC