It is possible, providing you have a separate license of 7, i.e. not an upgrade license. However I think your better just having 7 64 bit. I think maybe your media is bad, instead try downloading the media from Microsoft Downloads link below and following the instructions to make a bootable USB drive then try again.
I have 2 drives in my laptop and I'm wondering if it's possible to have Vista 32bit running on the primary and Win7 64bit on the secondary drive. I want to be sure all my applications work in 64bit before I wipe out Vista for good.  The only reason I want Win7 64bit is for its Moviemaker software's HD support, and the ability to see all 16gb of my ram... I attempted to install the Win7 64bit, but started out with an error about CD/DVD device drivers not found.   If I download and install Win7 drivers for my DVD drive, won't it stop functioning properly for Vista32? Thanks, Frank Precision M6400
Is it possible to have Vista32 and Win7 64bit on same laptop?