Composite video cables are the most commonly used cables on the market today. These cables came along with older stereos and VCRs decades ago, and have stuck around for quite a long time. Recently, new cables have been created like component, HDMI, and DVI cables, but there are still many people whose entire entertainment system runs off of basic composite cables because their devices are older and that's all that they can support.
There is nothing wrong with using these cables if that's what you have or are limited to. They provide a decent picture and sound, and will suffice until you decide to upgrade. Composite video cables are low quality because they only have one video cable. There is a left audio, right audio and video cable and they are all tied together as one cord, with a separation at the ends for plugging the cords into the right outlets.
You will see these cables and instantly know what they are because they are the standard yellow, white and red cables that have been around for decades. You can still find many companies selling these cables, namely RCA, and you can buy them for a fraction of what you would spend on other cables.
Of course, you still need to make sure that you are getting the right cables when you are shopping for them. Composite video cables might be old and standard for many people, but not everyone knows what they are looking for. If you take the time to learn a little about these cables, you should have no trouble getting what you need. If you ask around, you might not even have to buy these cables because you might find someone who has them sitting around their house collecting dust.
Composite video cables are old, but that doesn't make them obsolete. They are actually still very useful and can help many people get the connections that they are searching for when they have to hook up their entertainment systems. These cables are cheap, easy to find, and they still work. They might not be the cutting edge of technology, but for most people they're good enough until a device needs replaced, at which point the cables can be upgraded as well. Check out all of your options before you buy and make sure that you find the right composite cables and a great price, because you shouldn't have to pay a lot.