Nowadays you don't need to have a portable DVD player to enjoy your movies on the go. A converter like Nidesoft DVD Ripper can convert your films to watch on just about any portable device.
Nidesoft DVD Ripper is a powerful DVD ripping software which helps you convert DVDs to most popular video and audio formats easily, including MP4, AVI, WMV and DIVX. Using it is simple and there's a four-step guide on start up to help you rip your first DVD. When you insert a DVD, Nidesoft DVD Ripper will automatically spring into life (or you can browse to it if it's already open), and you need to choose a profile from the bottom drop down menu. After that, you can perform cropping using the top toolbar, where you will find editing options plus a few other effects. You can preview your final cut in the embedded media player.
Unfortunately, you can't save any profiles you use so every rip you do, you'll have to go through the same old profile selection process and any configuration necessary, which is a bit annoying. Generally though, the program is well designed, easy to use and reduces conversion to a minimum number of clicks.
If you want to watch your DVDs on the move and don't have a portable player, then Nidesoft DVD Ripper offers a decent and comprehensive ripping solution.