I bought a Sony shelf unit about a year ago and has always sounded very good. However, a few weeks ago, it just started skipping, mostly backwards, but sometimes forwards. It doesn't matter what CD I put in. I've had several CD players over the years and not once have I had one do this, and I've never found it necessary to use one of those disk cleaners, but I went ahead and bought one just to see, and it hasn't helped a bit. It doesn't seem that stability would be a problem as has been in the same place ever since I bought it. I hesitate to take it somewhere to have someone look at it because it might cost almost as much as the machine itself, but it's less than a year old and I hate to get rid of it. Any advice would be appreciated.