Sony Buyer

I am trying to put the movie Cat in the Hat on my Sony Walkman. It will come up to start playing on the computer screen, but I cannot figure out how to put it on my MP3. Can someone help me?

Sony Walkman supports H.264 and MPEG-4 so if you want to enjoy your movie on your sony walkman you have to convert it into sony walkman supported format
here i recommend you Aiseesoft DVD Ripper.
It can rip DVD to MP4, H.264, AVI, MP3, WMV, WMA, FLV, MKV, MPEG-1, MPEG-2, 3GP, 3GPP, VOB, DivX, Mov, RM, RMVB, M4A, AAC, WAV, etc.
With it you can easily do the conversion and then enjoy your movies on your sony walkman.

you can free download it here:

http://www.aiseesoft.com/dvd-ripper.html

and it is really easy to use:
Step 1: Install and run Aiseesoft DVD Ripper.
Step 2: Place the DVD into your DVD drive and click the “Load DVD” button to load DVD.
Step 3: Select video formats from “Profile” drop-download list
Step 4: Set the special settings such as “trim”,”effect”,etc to cater to your need and click “Start” to start your conversion.
Just have a try and I hope it can be helpful to you!