If you are preparing for the UK theory test, you can also use a DVD. There are several different DVD's containing theory test materials but only few of them have the DVSA revision questions. So make sure when you purchase a theory test DVD that it contains the DVSA questions and hazard perception clips.
Theory test DVD's
Motorcycle theory test DVD
If you are practising for the motorcycle theory test, you can also use this DVD. However we recommend you to use some of the websites offefing the theory test practices online.
If you are still not sure do you need a DVD (because most of the computers today do not anymore have a DVD drive) you should consider to purchase the online Theory test practice