I have a Samsung Galaxy S4 Active SGH-I537. I let it format my 64 GB SDHC card. It used exFAT format. I then transfered my MP3 collection to it, which is about 34 GB. When I finished, I noticed that I had only 15.4 GB left, so it used up 47 GB! If I check the folders' properties it only displays 7 GB. It doesn't add up.



I am guessing the size allocation might be set to big. Can I format it with a different size allocation on my Windows 7 PC and have it still be compatible with my android phone and regain some more space?


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