Recently I had been working on a project where I was storing music from old cassette tapes onto my computer, so as that technology becomes more and more obsolete, I will still have all that music. But, before I could do this, I had to get a cable that would fit the two red and white RCA jacks on the back of the cassette player, and the 3.5mm line-in jack on the back of my computer. I found this cable at RadioShack, for a fairly good price. It has gold connectors on both ends, which are proven to make the connection more clear and reliable. This is good for my situtation, because it will help preserve the quality of the audio coming from the cassette tapes. This cable can be useful for many other things, including hooking up many different kinds of speakers. It's especially useful if you are connecting an older piece of equipment up to a newer piece of equipment, since the older ones tend to use RCA connectors, and newer ones use 3.5mm jacks. It was a good buy for $14, since it has high-quality gold connectors and can be used for so many pieces of equipment.