Audiovox DVD1680 7-Inch Portable DVD Player
This is a Great Product!
I bought this having read some bad reviews about it but you get what you pay for!  But I was actually blown away by it, the picture quality is wonderful, the sound is good unless it's noisy, though what I did was used some mini speakers you can buy for discmans they work great to add extra volume.  The battery does last about three hours but it does come with an a/c adapter and car adapter which is nice.  I also liked the fact that it came with a cord(don't know what it's called) but I was able to plug it into my home theater system for surround sound and also into my tv for larger picture.  I also rent a lot of dvd's and all of the rentals worked fine for me, if your having trouble with a disc just clean it, I use soap and water although I hear that's a big no no but it's works great! Overall it is a awesome system for the money!