How can I convert an Hexadecimal number in bytes

Hello!
I have a string wich represents an hexadecimal value ( ex: C2105215767E)
I want to convert it into byte. I want to obtain an array of byte. I want to write it into a variable : byte[]var
How can I do it?
Thanks you for your answer.
cordialy,
lafon1

Look into the API for BigInteger. You can use a constructor that takes a String and specify the radix as 16 (hex). Big Integer includes a method to convert to a byte array.

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After battling a number of serious problems with the videos taken by my new Kodak Digital Camera, I decided to write up this page so that anyone searching the web would find out the true answers without as much grief!
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I bought the camera just before Christmas 2004 in the US. At the time of writing, it is a pretty good model for domestic use—about 5.2 megapixels, costing about US$400 (or AU$600 back here in Australia). From a company as reputable as Kodak, I expected no problems.
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The EasyShare software is not as easy to use as it looks, has a habit of crashing, has a web update program that is always running in the background of Windows, and transferring images is nowhere as easy or quick as it should be. I’ve now uninstalled it completely, and simply copy the photos directly from the device. (If the camera memory is nearly full, and you just want to transfer the last few photos, then it’s impossible to use the EasyShare software to browse the camera’s photos without it actually downloading the whole lot through the USB cable—and it takes forever! Copying from the device directly doesn’t hit this bug.)
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The second, more serious problem is that RADtools could not properly convert some of the video clips at all. (This problem only affected less than 10% of the clips I originally filmed, but most of those clips were very short—less than 20 seconds. It seems that the probability of this problem gets worse, the longer the clip.) RADtools would misreport the number of frames in the clip, and would stretch out a small number of frames of video (in slow motion) to match the length of the audio.
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After more angst, I found a number of websites in which frustrated owners of these Kodak cameras have reported the exact same problems.
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So, the first piece of advice I can give is: pay Apple the US$29 (or whatever amount it is in your country) to upgrade QuickTime to QuickTime Pro.
From here, however, there are still a few snags to untangle.
The first is that the default settings for Exporting to AVI don’t give a great result. It defaults to the Cinepak codec, medium quality. This looks terrible compared to the original QuickTime movie. Even on maximum quality, that codec just doesn’t give good results.
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MTO

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