I replaced the Sony DVD player with a Sony Blu-ray player yesterday that I already owned. Donít know the model of either. They both work fine. The Blu-ray is much better.
On a sort-of-related note, the trailer came with an iRV-33 that was factory installed. I donít know why the previous owner felt it necessary to add a DVD player since the iRV-33 plays DVDs quite nicely.