A lot of people have written reviews on the Kenwood DNX7100 and have given many pros and cons. I'm surprised that no one has ever mentioned anything about the speed the unit lists mp3s files off of a DVD or CD media. I personally own this unit and love everything about the unit, except for one thing, which I think is a dumb design. Going through a list of songs on a CD/DVD media is very painful and slow especially when you have more than 50 songs in a folder. Keep in mind that I only filled up 1/5 the capacity of the DVD media. When you press "FOLD" to tell the unit to display a list of folders and songs, the unit would display the first 5 songs (songs 1-5) on the screen (which is perfectly fine), and if you want to see the next 5 songs (songs 6-10) you would have to press the scroll down (downward triangular shape) button, BUT here's the catch. Instead of displaying the next 5 songs instantly all at once (like all other units I've tested), it displays ONE by ONE and the lag time between each is about 0.2 to 1 sec. In other words, it would display song 6..lag..song 7...lag...8...9...10 etc. Imagine you have to go through a list of 100 songs or more, it could be frustrating. What frustrated me the most is that a big name like Kenwood would design a bad feature like this, a very frequently used feature to those who listens to mp3s off of a burned media. I know there're ways around of not having to use this feature, like breaking down the list of songs into folders, use ipods, or usb drive (list of songs is much faster, btw), but I still want to be able to quickly navigate through a list of songs on a burned media since this is what I use a lot, and I'm sure other people too. I had to make sure this is not a faulty unit therefore I called up Kenwood and crutchfield and they confirmed that this is the nature of the unit. I still didn't believe that because I still gave Kenwood the benefit of a doubt. So, I went to an electronic store called Audiotronics to test out the DNX7100 display unit they had there and only to find out that it did the same thing. I put the same mp3 disc into other displayed units (such as Alpine, Pioneer, even Jensen) at Audiotronics and I was able to navigate through the list of songs quicly and easily, and I was wondering to myself..why not Kenwood? I still love this unit as a whole, especially the navigation and usb read, therefore I'm going to keep it and will play most mp3s off of an ipod or a usb drive instead. I know I might be a little too picky and some people might find this to be normal, but to me being able to navigate through a list of songs on a media quickly is important, especially when u fill up the DVD+/-R with 4gb worth of mp3s.