Digital Photo Frame

I bought a Hannspree SD7021 7" digital photo frame from TigerDirect for my grandmother for Christmas. I'm satisfied with it. The images look slightly pixelated when you're real close to it, but when you sit back 2 feet it looks fine. I used Picasa to crop the images to 16:9 format and resize them to 720 pixels before saving them to an SD memory card. This ensured that they filled the screen. I also had to change one setting on the frame so it would fit images to the screen. Otherwise black bands appeared. This frame does have an accelerometer so if you rotate it 90 degrees the image reorients. I also downloaded some of my sister's wedding photos from Flickr and they look great on this frame too. One thing that confuses me is that the box says the resolution is 480x234, but the troubleshooting guide in the manual suggests resizing images to 720x400 to correct black bands.