The DCR-TRV140 is Sony's least-expensive digital camcorder, and is quite a steal for those who want to make the digital plunge. To start off, Sony put in a 20x optical zoom and paired it with SteadyShot image stabilization. Image stabilisation is a handy technology that helps to eliminate the shakiness associated with high zoom levels. The only way to avoid shakiness completely is to utilise a tripod, table or other stable surface. The 2.5 inch LCD is the best way to frame your shots, although you can use the black and white EVF (electronic view finder) to preserve battery life.
The Digital8 line was conceived to provide a path to digital for current owners of 8 mm or Hi8 camcorders. Unfortunately, the DCR-TRV140 can't play Hi8 and 8 mm footage, as its bigger brothers up the line, such as the DCR-TRV240, can. This makes it best suited to first-time camcorder users, who don't have archives of older formats that they need compatibility with.
In addition to the normal slew of ports (IEEE1394, S-Video, mini A/V) that have made their way onto the TRV140, there's also a USB port, which, with some included software, offers some interesting functions. Specifically, it allows you to use the camcorder to capture stills, or "broadcast live video with audio", when attached to your PC, according to Sony, which seems to indicate you can use the TRV140 as a WebCam.