Good Morning. I purchased a 64gb Micro SD card for my S4 last week. Having tried it out last night, I'm starting to think it's a knock off one that displays that it's got 64gb memory, but only has about 2-3gb. I haven't bought a memory card for years and was quite oblivious as to how expensive memory cards are, even though I normally have a quick read up about any purchases. So far I've got the first Lord of the Rings film and an album on there, as well as a few free games from the market place. I tried to upload another film this morning but it was unable to complete, I was unsure if this was due to the format or if it was a knock off. So my question is this, is this likely to be a knock off? 64GB CLASS 10 MICROSD MICRO SD SDHC MEMORY CARD + ADAPTER UK SELLER S3, S4, NEW | eBay I could just wait and see if it'll take more albums later but as I'm impatient, I wondered if any of you fine fellows could help. Many thanks.