The dvd ram is one of the three re writeable dvd formats which is characterised by its better re writing ability and data integrity as compared to the other two the dvd ram is used in computers as well as also in camcorders and hard disk recordersthe dvd ram is the only dvd which can be read and written at the same time thus for instance it is possible to view the programme running for long from the beginning with a dvd ram recorder which is connected to the home tv set instead of a vide