I have a bunch of video clips recorded on a SONY FDR-AX43 camcorder recorded in XAVC 4K 60Mbps at 30p frame rate that I want to create 1080p BRD's and SD DVD's. I was curious if there is any differene between producing those files at 4K 60Mbps 30p and then creating the disc image to 1080p / 480p or producing to 1080p to start with and then burning to 1080p images/discs? Not sure if one way will produce sharper video or it's basically the same.