Ok as promised here is the how to for converting a video to a .mp4 format that Sony Walkman will recognize. In this How To I am using Nero Recode 3 which is part of the Nero 8 Software.
You will notice along the top of the website it says.
But the videos DO NOT work on the Sony Walkman.
I have included images to help those who are not the most tech savvy of sorts.
1.) I have decided to use the Superbad Trailer for this example, if you havent seen the movie go watch it. Click download MP4 only.
2.) Depending on what internet browser you are using download the file. (FireFox Shown Below)
3.) Open Nero Recode and once it is open select Recode DVDs and Videos to Nero Digital
4.) Once open on the bottom right select under Profile Category: Sony and under Profile PSP. Then click Import Files.
5.) Go to where you downloaded the video or where your video is on your computer. Select the video file then click Add title. Then click close. Make Sure the video is set to the correct size or you will not be able to view it on your Walkman, click Custom Resize then enter 320 wide x 240 tall this should work fine.
6.) Since you had selected PSP it thinks you are transfering directly to a Sony PSP device just click Ok and go on to the next screen.
7.) Select where you want your file to be burned to and then click burn.
8.) The file will begin to burn to your selected desination on the left side you can see the video previewed. Once done it will ask you to save a log file, you don’t need to, then click next and then exit.
9.) Now that you have your video in .mp4 you can rename it for easier finding, I renamed mine from MAQ13529.mp4 to Superbad Trailer.mp4 on the walkman to have a preview image on videos you need to include a .jpg image and upload it along with the video in the video folder on your Walkman in your MyComputer screen. Make sure they are the exact same name to display correctly.
10.) Upload to your Walkman wait for it to finish then disconnect the USB from your Walkman and goto your video section and enjoy your new Trailer.