Nowhere it is mentionned that there is some limitation in using USB keys to display files on Samsung plasma TV.
A limitation means that it has been done intentionally. I cant imagine a designer saying "I will design the USB interface decoder to cutt off the sound every 26s". No, its a design error, a bug. I'm also an designer (in electronics), and I have done design errors, but I never hide them behind the term "limitation"; if I cant reach a requirement, I declare a non conformance. For sure I'm not a sheep and I'll try to have some explanations from Samsung
Anyway, my USB keys works perfectly on other devices, so I'll try to change the encoding . The movies I have are classicaly coded in MPEG 4 for video, MPEG 1 layer3 or AC3 for sound, and AVI v2 for container. I dont know what to change; the container AVI to DIVX?