Originally Posted by newmusic12
Hello, I just purchased an SDXC card for my brand new Canon Vixia HF M500.
The card that I purchased is the 64GB Sandisk Extreme Pro SDSDXPA-064G-A75
Is this a good match for my camcorder, if I plan on using it for Full HD 1080?
First, 64 GB is enough for over 5 hours of continuous recording at 1080p60. Nobody could watch a video that long.
Second, you got a version of SD card that is intended for equipment that has far greater demands than you camera. Look it up on Wikipedia: http://en.wikipedia.org/wiki/SD_card
The summary of Wikipedia's article is that SD and SDHC cards have speed rating of 4, 6 and 10. On the cards it is printed inside of a "C" shaped symbol. Your manual will say that those cards are recommended. The SDXC card you bought has a UHS speed rating of 1. On the card it will be printed inside a "U" shaped symbol.
Third, if you read SD card part of your instruction manual and the Wikipedia article, you will see that your card might have compatibility issues in other equipment. Examples might be your computer or Blu-Ray player that has a card slot.
Using Amazon as a source, the 64 GB cards in the Class 10 rating are running about $60 and yours they have priced at $160. You kissed off $100.
You can test SD cards with a utility from Germany that operates in both German and English. It is called "H2testw". You will find it if you google it. It tests SD cards for errors and computes a writing and a reading speed. I used it to test a Transcend 32 GB Class 10 SDHC. And found it recoded at 15.4 MBps, giving me a 50% bonus over the 10 MBps guarantee.
According to my manual, my camera in 1080p60, produces data at the rate of about 28 Mbps. That converts to about 3.5 MBps. Yours will be about the same. (Bits and bytes can be confusing.) So my card, according to the test, will accept data about 4 times faster than my camera can make it. Note that a Class 4, with a guarantee of 4.0MBps will also work just like the manual says.
The card you bought is supposed to record at around 90 MBps. That’s about 25 times more than your camera can do!
You might wonder why Canon put in an SDXC capable slot. Not for speed. The SDXC spec allows for development of up to 2TB cards. If my math is right it means you could record almost 200 hours of 1080p! Since you can't buy more than 64GB SDXC cards now, any SDHC card makes more sense.
If you haven't broken the packaging, try to get your money back. Get a $30 32GB card. I could only fill mine half way on a two week trip to Europe.