Located on the bottom of the unit is the USB connection, which allows you to connect the DMP-HD610 to your computer via the USB 1.1 interface. The problem with using the USB 1.1 interface is the transfer speed. The D-Link user's guide claims transfer rates of close to 800 kB per second, but you don't need a mathematics degree to conclude that, even with a transfer speed such as this, the transfer time for moving larger amounts of data is lengthy.

Of course, once you have the majority of your MP3 files transferred onto the DMP-HD610, you most likely will not have to endure this significant wait time again. In our case, our entire collection of MP3 files (which totaled 2,149 songs with a total size of 9.81GB) took a couple of hours to copy to the DMP-HD610.

Upon discussion with the folks at D-Link, it was obvious that we were not the only people to complain about the slow transfer time. D-Link told us that they are looking into the possibility of producing a unit that would include a USB 2.0 interface. (Of course, no manufacturer or developer provides much information about products that are in the development phase and/ or are not yet announced, so we have no additional details to offer.) Including the USB 2.0 interface would provide a real boost to the transfer rate, in our opinion. If you have a large MP3 collection, the DMP-HD610 will most likely serve as a portable archive, and in that case, you will only be adding additional songs to the unit (and not moving your entire collection to the unit every time) for most uses. In this situation, while you might consider the USB 1.1 interface a little slow, we feel it is acceptable. We liked the DMP-HD610's ability to double as a USB storage device, as this provides the ability to copy any type of files over to the DMP-HD610 unit for easy transport to another computer.

Also found on the bottom of the DMP-HD610 is a line-out connection for connection to a stereo or amplifier. Naturally, a cable is not included, so you will need to provide one to connect the DMP-HD610 to RCA jacks from this 3.5mm jack.

The DMP-HD610 unit does, of course, include a DV 5V Power Input jack that is used to power the unit and recharge the removable lithium-ion battery. The user's manual also mentions that it is possible to use a car lighter adapter with the power input jack as well. However, the manual does not provide details as to which lighter adapter is compatible, or where you can purchase one. It is important to note that D-Link did get the power adapter right with this unit. The included AC adapter is light and compact, and is of better quality than those included with many other devices.

A look at the top of the DMP-HD610.