Toshiba SD-P1200 7-Inch Portable DVD Player (Red)
Picture is iffy, but it's a solid unit
I also owned the Mintek 1700 and in fact, I took it back and spent an extra [$$] to upgrade to this Toshiba unit.  The reviewers who said that the picture is hard, pixellated and looks like it has too much contrast (which you can't turn down, but can on the Mintek) are right.  Compared to the Mintek, the picture is not as good.  But the retailers actually warned me of that when I took my Mintek back to the store that I purchased it in.  It's not terrible, but definitely not as smooth or pretty and vivid as the Mintek.  It all comes down to quality.  Do you want to spend [$$]on a unit that has a nice picture but breaks often or spend the extra [$$] on a unit that is sturdy and durable with a slightly inferior picture?  When you decide that then you can figure out which portable DVD player is best for you.  I'd like to have the Mintek's crystal clear picture back, but it was a hassle to exchange it every 2-3 months.