I've got a Galaxy tab 10.1 32 GB model. I am trying to rip DVDs into a format that the Tab will support so I can watch movies on it. I am using software called Foxreal DVD Ripper (trial version first) and it has "profiles" designed for the Galaxy Tab. It rips the movie (U571 in this example) into an .mp4 file. I have transferred the file to the Tab with no problem but it won't play with the stock video player. "Sorry, this video type cannot be played." I downloaded Rockplayer and it gave me the same error. It shouldn't be this hard.... what the heck am I doing wrong?