problem please help me

hello
OK here is the problem wide and open
i am not an pro i am a noob with winrar i only know how to extract stuff
but i download sonic adventure (U) (KALISTO) and it came with 3 files
1.KAL-SODC.BIN
2.KAL-SODC.CUE
3.kal-sona.nfo
but when i extract they wont turn into a cdi file
and nullDC cant load .CUE or .BIN files only cdi
and then another addition to this problem
i also downloaded house of the dead 2 and it came with only 1 file and that's the cdi file i needed to run the game
anyone has an idea on how to do this?
thanks in advance:)

I dunno too much, but you could try bin2cdi on this page. http://cubey.illiop.com/dc/Haven't tried myself, if you're nervous run it in a sandbox.I think the rom was a bin in the 1st place because it wasn't self-boot but I'm not sure.hope it helps.