bootcamp install fails

New MacBook Pro Retina.  
OSX 10.9.4
Samsung usb DVD drive.
Win7 bootable install disc, that has been used many times with our volume license.

The directions are simple and clear.  I run OSX, run all updates, run bootcamp.   Here there is sometimes an issue, as the win7/external usb drive is visible on the desktop but bootcamp reports there is no USB drive connected to the system.  
So that's fun.   (why does anyone like a MAC?)  I think what is happening is that whatever it is that 'helps' you at startup, by going to exactly where you were before you shut down, is also remembering but incorrectly, that there isn't a usb drive.   That is, if I do a complete shutdown, leave it for 5 min or so and start up, and go to 'Applications', it opens with 'Utilities' expanded.  

Hmm, this time I seem to be stuck there.   Can't get past 'no usb drive connected'.  This is not even my real question.  Yesterday when this happened, if I waited a while or moved the usb cable to the other port, it'd eventually see it.  Today, no way.
wapoc.

Ok, so if I only have checked 'install win7' and unchecked 'make an install disc'  and unchecked 'Download support software',  I can move to the partition screen. I click the 'equal' button, and then though there is a msg that "windows support software not detected.  insert a usb drive, yadayada...'  I of course have both put it on a flash drive, and put it on the MAC desktop, but the system cannot see the other flash drive, and bootcamp instructions say you can only have one drive connected when installing anyway, which is the usb drive with the win7 DVD in it.
wapoc

Over the past couple days eventually bootcamp would recognize the drive and move on, to the real issue.   Choose install windows, bring up the partitioner, equal sizes, reboot into Win7, install.... and after about 10% it quits.

Edit; so I have moved past the partition and not seeing the usb drive issue, and am now installing.
Check- copying windows files
Expanding windows files 0%...    ...    ...     ...     ...     ...
and it is not moving.
JerryC101Asked:
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strungCommented:
Make a note of the time when the install hangs and see what the console logs are for the few minutes on either side.
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strungCommented:
Possibly bad media?
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strungCommented:
Check the console logs.
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JerryC101Author Commented:
Possibly bad media?
Googling showed this to be a possibility so I now have tried 2 different new discs, one from M'soft direct, one from a non Msoft dl website, along with the earlier one,  No difference.  
I was going to try a different DVD/usb drive but can't today.  I did get a different cable but that's not helping.   I think I am going to look into making a flash drive bootable with win7.  There apparently is a workaround this way, but am not certain yet.


Check the console logs.
I don't know where in there to look, or what for.  There are over 4k entries it says.
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