Im getting a htc m8 in about a week and im looking at sd card memory options. It just occured to me that there might be a probability that the sd port on the card has a mb/s ceiling. Im looking at getting a sandisk 64gb 80mb/s sd card. Im mostly going to use it for storing playstation 1 emulations and music, do you think those activities justify a larger transfer rate? Or if the phone can even handle those transfer rates in the first place?