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Transfering CR2 files from card to hard drive VERY slow in Win7 64-bit. How come?
#1
Hi. This is the first time trying to use a Windows 7 64-bit computer to work with photos. My Windows XP machine just died. Coffee spill :/

So I had a photo shoot yesterday. I have a bout 1.5 GB of images to transfer. Connected the card reader with CompactFlash card to usb port of computer. Windows 7 recognized the reader and said - READY FOR USE. All good up to here.

But then..

When I tried dragging the Canon Raw image files (.CR2) from the card to the hard drive - the transfer seemed impossibly sloooowww. It said expected time would be 1 hour!

I stopped it and tried again. This time it said 3 hours!

I googled the issue and found people mentioning that 64-bit systems are not yet supported by Canon Raw. Though most were talking about viewing the images rather than transferring them from card to hard drive. I also found someone mentioning that 64-bit systems would cause the .CR2 files to become corrupt!!

The weird thing is that all these mentions I found on the internet seem dated... from 2009 or 2010.

Does anyone know what is going on today?

Are there still issues with Windows 7 64-bit and Canon Raw image files?

Is there some solution?



Please help..... it's kind of urgent. I need to get these images off the card soon.. before another shoot <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/ohmy.gif' class='bbc_emoticon' alt=':o' />



Thanks!
#2
There is no problem with cr2 files on Windows. The only minor annoyance is some newer bodies are not supported by Microsoft's raw viewer add-on, but that's no problem if you already use something else to do raw conversion.



My thoughts are: do you have the correct drivers installed for your system? Make sure the card reader is plugged directly into a USB2 (or USB3) port, although I guess anything slower is unlikely on a new system now. Avoid using an external hub to connect. Assuming the CF card isn't stupidly old/slow then the copy of 1.5 GB should take under a couple minutes or so. If you're using a very fast card, you might benefit from a faster card reader that uses USB3 for example. e.g. my Sandisk Extreme copies about 60MB/s with a Lexar reader over USB3 compared to ~20GB/s over USB2. Forgot to say, I'm using Windows 7-64 pretty much since launch without problem here.



Also if you use over-paranoid anti-virus software or other software that is looking at the card, that might be trying to simultaneously read from the card and slow things down.
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.
#3
@adifrank: I use an USB-3.0 Cardreader (Hama) and Sandisk Extreme (without Pro) and Transcend 400x compact flash cards.

Read is about 66 MByte/s, about twice the speed of my old USB-2.0 device (which was quite good for USB 2.0).

OS is W7/64 and those thing you read made me laugh. I have something to do with desktops under Windows in my day job. Which kind of cardreader do you use?



Ciao, Walter
#4
hi thank for the replies!

well it seems to be a problem with my card reader, or something between my card reader and windows7... in any case apparently it isn't a cannon - 64-bit issue.

I tried transferring directly from camera and all is well.



Thanks!
  


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