<p>Sorry to necro this one, but I had similar issues, i.e. when using EOS utility, the download via USB would hang after 1 or two pictures.<br />I have Windows 7 (64bit) and the camera is 50D, CF card was/is ScanDisk 32GB, 120 MB/s. Reading the images via card reader works/worked ok.<br>
I tried to resolve this by</p>
<ol>
<li>Re-installing EOS utility + all EOS software, starting from the CDs and going to the latest and trying to download via USB the pictures. Same problems</li>
<li>Tried different USB ports and cables, and the problem still persisted.</li>
<li>Did the same with my laptop and the problem persisted.</li>
</ol>
<p>On a weekend trip the card gave some errors when shooting in burst mode, so I started thinking, that maybe the card is faulty.<br>
I bought a new similar card, as I had had before. I did some test shots and when using the USB download, it worked faultlessly on both my desktop and laptop.<br>
So I am assuming based on my tests, that if the card is getting faulty, then also the USB download will not work. So if the USB download stops working, I think this might be a good indication that the card might need to be replaced.<br>
I think this is good info to have, as this thread was the first I found when looking around for the solution.</p>
