Manufacturers who are unlikely to stop updating their firmware

The manufacturer of my Blu-ray player stopped publishing new firmware updates almost two years ago, not long after I bought the player, and I've encountered a couple discs that won't play in it, and nothing I can do about it except return the movie unwatched. This is not a no-name, fly-by-night manufacturer, it is Memorex.

For all three discs, the behavior was the same, even though they were different movies: they would play the 20th Century Fox logo, go to black, and then the player would freeze at 7 seconds. This identical behavior for different movies makes me think it's not a dirty or scratched disc.

If I buy another Blu-ray player, which manufacturers have shown by their past actions that they are not likely to stop publishing firmware updates even if they stop making the model in question? I realize past performance is no guarantee, but it certainly is a guide.

Thanks!