elisherer has released version 1.2 of 3DSExplorer, a PC application to open 3DS files and convert videos to the 3DS format.
At the request of the author, we will from now on link to his Google Code page for downloads, but we will keep a backup of the file in our database, in case that page ever disappears.
Changelog (02/02/12)
Added: The product codes and maker codes are now in a file called title.db
Added: 3ds/cci/csu can be opened from zip/7z files with limited information (cci,1st cxi & crc32)
Usage
Opens:
CTR Cartridge Image files (CCI/CSU)
CTR eXecutable Image files (CXI)
CTR Importable Archives (CIA)
CTR Icons (ICN)
CTR Banners (BNR)
CTR Waves (CWAV)
CTR Graphics (CGFX)
Save Flash binaries (SAV) (decrypted or encrypted)