Good news for those that bought an HD DVD player from Amazon.com. According to Gizmodo, the retailer is giving $50 in credit for every HD DVD player bought from them before February 23, 2008. Here is part of the email that Amazon is sending to their customers:
As someone who purchased an HD DVD player from us before February 23, 2008,* you might like to hear about a special offer available from Amazon.com.

New technologies don't always work out as planned. We at Amazon.com value our customer relationships more than anything and would like to support customers who purchased these players by offering a credit good for $50 off any products sold by Amazon.com.** Just use promotional code PROMO CODE HERE when checking out. The code is valid through April 9, 2009, so you have plenty of time to use your credit. Purchases from third-party merchants on our site are not eligible.
While this isn't as good as an entire refund, its good to see retailers like Amazon making things right with their customers. If you'd like to read more, the entire email can be found here.