I had some problems for a while with HD-DVDs freezing or giving error messages - it started with one disc (Carlito's Way), but then spread to others. I started shopping for a replacement player when I decided to do a firmware update. To my pleasant surprise, it fixed ALL of the problems. My player is a Toshiba A-30.
JVC DLA-RS2, 120" Grandview motorized screen, 60" LG 50PN6500, Marantz SDR7007, Energy RC-70 mains, RC-LCR centre, RC-R side and rear surrounds, dual PSB Subsonic 6i, Sony BDP-S5100, Toshiba HD-A30, Xbox 360, Marantz CD6005, Yamaha CDC-675, APC S15 power conditioner and UPS, Monoprice interconnects and 12GA speaker wire, Palliser Media & Ikea Poang seating