I just noticed this "new" console screenshot thread a few moments ago.
I've actually been using a capture card to do both screenshots and video from my XBOX 360S to my PC. The card I'm using is AVerMedia HD DVR Model C027.
It does work very well so far. BUT, I think I need better cables. As it stands now, I'm seeing some image corruption on the screen and that wasn't happening until recently. I already have several screenshots from Halo Reach, Gears of War, and a few others.
Once I get the new cables I'll see if the images are any better than what I have now. And, I am playing at 720p.
End of Chat!
~Windows 10 x64 Professional
~Gigabyte Z77X-UD5H~Intel I7-3770K~8x2 GB DDR3 Crucial Ballistic 1600 RAM (Dual Channel)~RealTek Onboard~XFX R9 390 8GB GDDR5
~3 Acer 27 inch LCDs~SCEPTRE 505 4K UHD TV
and one Sanyo 32 inch HDTV connected via Intel onboard GPU~SATA BluRay RW~1000 W PSU~And a Whole Lot More!~AND....1 TB XBOX ONE~1 PS4 with Uncharted Bundle~
If you have an issue with what you said, please resolve it in private ;)