I have just got my first tablet, Asus tf101. And I am feeling very much like a n00b. Trying to put some films (.avi) from my pc to tablet and I am going mad. I have a micro sd (32gb) and micro sd to usb adapter. I transferred the files to the micro sd, then put it in the tablet only one was there and I couldn't get it play with picture (using MX player) I have now ticket the s/w box in mx player and that one file works. But the others are not there. Put the micro sd back in pc and files are all gone bar two. A LOST.dir is not there. One of the films is not only 14 min long and plays on hi speed. I have copied the files back and forth same keeps happening. All play on my computer, until i put them on the sd card, then once in the tablet they disappear. Now the sd card won't work at all and won't format! I think I'm going mad here!