Here's my deal... I have a Panasonic DVD Recorder - Model No. DMR-E100H. I've had it for over two years now. It still works like a dream. It records great and still dubbs great, too. I noticed about 2 weeks ago when I put a dvd in- a different, louder loading sound- more like a strange chugging noise. I had placed the dvd in just the right spot, too. Mind you I have had it awhile, so I know just where to place the dvd. When I eject it and put the dvd back in, it seems to be alright. It has repeatedly done this strange noise periodically since, and sometimes makes this same noise when I finalize a disc, too. I have never cleaned my unit's lens and noticed in the manual that it says this should be done once a year with DVD-RAM/PD lens cleaner (LF-K123LCCA1). I thought - okay I'll get that and do that. Well, I researched it on-line and noticed people saying that dvd lens cleaners could actually scratch my lens up and make things worse - so now I am uncertain as to what I should do. I searched the forums here and found mixed results. Any suggestions or advice?