DOS extract problems

[daedelus]

I have just finished ripping a game (which I do not believe to be complete as Track03.iso.gz is only 786 KB big and I have tried 5 times and the same file size is given all the time and Track38.iso.gz is 171 mb big. I have decided to move on) When I go into DOS and type in extract track03.iso track38.iso [####t sector] it doesn't extract but instead gives me a message saying that track03.iso is not a cabinet file. Can I extract these ISO files with an ISO extraction program like WinImage?