The notion about filming 29 minutes is sufficient benchmark. You should turn your camera on right now - and roll for 30 minutes to see if it is possible. You can delete your file when your done - or better yet just reformat the memory stick when your done. Then you should charge your camera and roll again. You should repeat the cycle several times so you know exactly how much time you have - what your comfortable with and also to get to know the power meter.
I think you have the right idea. If your equipment is faulty then you can either return it, or get it serviced.
Can you tell me if any of this makes sense?
I hope you will write back and we can talk more about this issue. Honestly though, my prediction is that you need to use the camera and determine if you will have enough power and how long it takes to charge. If you are concerned about the size of the Memory card, that is the end surplus to your question. You just need to know how much space a 30 minutes of video is going to take up on the memory card. I would imagine that 16GB should be sufficient.
So let me ask you to return some information back to me.
Charge your camera for 2 hours. Look at the charge meter(*1). Shoot your camera for 30 minutes and plug it back in for 2 hours. Then roll your camera for another 30 minutes. Where is the charge meter(*2).
Now plug the camera in for 2 hours and check the charge meter(*3).
Does *1 = *2 = *3 on the power meter ?
If so you can conclude that 2 hours should be a sufficient amount of time to recharge the camera to run it for 30 minutes.
The way I see it - you still have plenty of time to validate your concerns before tommorrow night.
You can write me back and tell me if we were succesful and we can conclude the answer. I would expect to hear back in about 7 hours right? It would be great if you could drop me a note before you begin.
If I missed anything please let me know?
Thank you. I value your business.