Boss Audio Systems DVD-7500 7 in. Car DVD Player

bought unit hoping that I wouldn't have problems and after 2 months I had to return unit and was told that the unit was back-ordered and it took three months to receive another unit. The problem that I had was that the dvd would make a clinking sound and would never load the disc. The problem with the second unit was exactly the same problem. I tried to return again, but was told that the unit was out of warranty. I being an electronic tech opened the unit and found that the loading mechanism is poorly designed. It uses inferior plastic gears ( I know all manufacturers use plastic) and the load being applied to those gears is very great. What happens is that the gear after about 2 to 3 months will strip and you end up having the same problem. Don't do as I did. Don't spend your money on a unit from Boss, spend the extra and buy a real quality unit from a well known manufacturer.