I have recently purchased a USB stick so that i can plug into my tv to watch movies on. However when transferring AVI files from my Mac onto my USB stick it seems to transfer the whole file but when I try to watch it through quicktime or on TV it is unable to read the file. the thing is it is not happening to all my AVI files as some of them are able to be transferred to USB and work fine but then others are not working and I am not sure what the difference is. The AVI files all work fine on my Mac before i transfer them but something is breaking down when they are transferred. Any help please as I have been unable to find a solution.