The firmware upgrade fixed my 563a's inability to play the Who's Tommy DVD-A.
Yes you should go ahead an have the player upgraded. What should happen when you call the pioneer cs is that you'll tell them what player you have and that you need a firmware update and they'll send you a letter authorizing this upgrade and also steer you to an authorized service center. The service center will do the work at no cost to you when presented with the letter. - at least this is what happened in my case and was my understanding of what would happen based on the document you linked.
jeff
Yes you should go ahead an have the player upgraded. What should happen when you call the pioneer cs is that you'll tell them what player you have and that you need a firmware update and they'll send you a letter authorizing this upgrade and also steer you to an authorized service center. The service center will do the work at no cost to you when presented with the letter. - at least this is what happened in my case and was my understanding of what would happen based on the document you linked.
jeff