I just purchased an Apex AD-5131, hoping to use it to watch my personally burned DVD+RW discs among others. Unfortunately the unit I bought seems to play everything but my DVD+RW discs. That's kind of surprising based on reviews I've seen. Is anyone successfully watching DVD+RW discs on their 5131?

Note these discs do play on my Samsung P721 and they are generics purchased from rima.com.