I created some MP4 files from old VHS tapes using handbrake. I combined some of the MP4's using Windows Movie Maker to get entire VHS tape into one MP4 file. I also tried combining using IMovie. I loaded the MP4's onto new seagate portable HD. Also tried regular thumb drive. The problem is no matter the method (just handbrake, movie maker, or IMovie) I can't get the MP4's to play back well using blue-ray player. If the MP4 is about 500mb in size it will play but when I fast forward I lose sound after about 5 mintues. If it is 3gb I lose sound after 36 seconds and if it is 9gb the blue-ray will not even recognize the file. The first BR player I tried was an LG (2010) and in manual says it is capable of playing MP4's. I then went to electronics store and explained my problem. Told them I would buy a BR player on the spot if it can play my MP4's. They opened new Samsung and I plugged in HD and still same problem. Is there an easy way to play these videos that isn't too technical or expensive. Roku maybe? I'd buy it if I knew it was going to solve my problem. I tried googling the issue but can't seem to find anyone with similar issues. Thank in advance!