Dreamrip problems...please help

ok, ive already got the track03.iso track07.iso, and 3 other trackxx.raw files. then i go to does and go to my directory where the iso files are: C:\dreamrip. then i type"extract track03.iso" and it says "track03.iso is not a cabinet file" and it wont extract. this is my first ripped game, and im clueless on what to do. also, what do i do with the raw files? i heard if you type "raw2wav trackxx.raw" it will convert it to the neccesary file, but dos says "bad command or file name". please help!