Hi

as i can attach my cybershot to my tv i would like to download movies off the net and play them through my cybershot on to my tv now if i use my cybershot to record something this all plays fine obviously because when saving it creates a file with the video called .thm from what i have researched this is a thumbnail so here is the problem when i take a movie off the net i know how to convert the movie to mp4 but i cant find any converter that also prduces the .thm with the movie thus meaning when i place it in my cybershot it dosent show up i have also tried making a video on my cybershot then deleting the video but keeping the .thm file then i put a movie from pc on to cybershot and rename the thm file to the same as the movie this then shows up in my cybershot but when i press play it says file error i need help there must be a simple way of making a thm file so i can play movies through cybershot is there not any converter that makes a thm file with the vide file help please this is driving me mad

also my cybershot records in hd so i think when a mp4 is saved its in size 720 x1280