If you didn't use PMB to put the files in the network folder, it may not work. PMB seems to need the two companion files that come from the camera in the PMB transfer process. It you put the .mts files on the network with something else you may not get what you want. And, I think if you use PMB, the files will be .m2ts files. That suggests you used Windows Explorer to put the files on the network because I think Windows Explorer renames files to the old 8.3 standard.