There are several models of hybrid camcorders as they are called that have entered the market, having both solid state and DVD recorders built into them for recording media. Several use mini-DVD disks that are capable of storing 4 Gigabytes of information or in video terms around 30 minutes.
Disks on the other hand come in double sided that offers an hour of video allowing half our on each side. The memory slot allows the capture of stills without having to carry a separate camera which for general shots is quite decent at 5 megapixels. The DVD drive is quite sensitive to dust and must be loaded/unloaded with care to prevent the miniature dvd drive contained within.