Anyone know what is the largest supported flash drive this deck can handle? i have tried 2 64gb (pny/centon) formated as FAT32 and they both have problems playing songs, when i only had one or two songs on the pny it would play but as soon as i loaded more music (folders etc) it would say unplayable format (although all songs are .mp3). I thought it was the usb cable but i got my hands on a ipod classic and it works fine. I'm thinking 32gb maybe? but wanted to see if anyone could verify, Pioneer tech support failed me the other day so i would "try again" but i don't think i would get a answer.