Not possible. The only way would be to open the image file on the PC using a virtual CD mounting program, compress the contents (assuming it's a movie) using DVD Shrink or DIVX or something, and then burn that to the smaller disk.
Not possible. The only way would be to open the image file on the PC using a virtual CD mounting program, compress the contents (assuming it's a movie) using DVD Shrink or DIVX or something, and then burn that to the smaller disk.