I've seen people discussing the lack of resume play on the 2900. Unfortunately, I'm about 225 miles away from mine right now, so I can't test this specifically. However, after using the 2900 for nearly 5 months, I've never noticed this to be a problem. I can't say that I've paid much attention, but my recollection is that the 2900 does in fact resume play when you stop and then press play again. Hitting the stop button twice will cause the disc to restart the next time you press play. Now, if you turn the machine off at the player, rather than simply putting the machine in standby, then I doubt it will resume play. But I haven't tested that specifically (I never even turn the player off with the remote, I just let it go to sleep), and since I can't check it out for this specific function right now, I can't be 100% certain that anything I said above is correct. I will try to remember to check it out the next time I'm home. But I have to think that I would have noticed if the player restarted from the beginning each time you pressed start.
Hope that helps, and maybe somebody else can chime in, somebody who actually has the player in front of them.