After doing a good amount of reading, I ended up buying a Zoom H4n digital audio
recorder very recently because of its versatility aside from the good quality recordings it makes...
definitely better than any videocam's mic/audio system. Although on the basis of reviews,
Sony"s pcm D50 seems to slightly edge out the Zoom H4n in recording quality, its major drawback is the very limited ability to do other things except the most basic. In the H4n, one can have 2 xlr connected mikes with phantom power to give one the ability to expand and tweak recording. One can also record in 4 channels simultaneously with independent recording level controls... wow!!! The only problem really is the miking positions which is a voluminous topic in itself and can be quite overwhelming. Together with the H4n ... I also availed of two pencil mikes (Shure pg81) ... and the appropriate attachments and cables.
I am sure there very knowledgeable guys here when it comes to miking a grand piano. Shure and many others also have their own suggestions ..... overall it boils down to individual taste which is often achieved by trial and error.... considering many factors like acoustics of the room or hall, size, quality of equipment etc. .. and the piano itself.
May you be so kind to share your experience whether bad or good? Below is my 1st recording experience using the zoom H4n .... I made this as soon as I received the device ... without reading the manual

.... placed the batteries and just used the built in mikes in the XY 90 degrees configuration.

I was about 8 feet from the Yamaha G3 (55 years old!!!) and off axis.... to the side. I asked Enzo to play the last parts of Chopins Scherzo No.3 .... but a little louder than he usually does...
THANKS for SHARING your experience...... I hope to lessen my headches by not repeating your mistakes

or by copying your technique to a certain extent.

Sorry.... it even picked up the squeeking pedal mechanism...