answer 1
No, this camera does not record in HD. This camera records in 720x480 resolution, which is the standard resolution for "regular" tv.
If you want to record in HD, you will need to look for a camera with a resolution of 1920x1080. Keep in mind that HD requires large amounts of storage space, and if you intend to do any editing, your computer needs to have robust hardware and editing software.
Standard definition is good enough for regular point and shoot filming, if you would like to film everyday normal life. HD does have it's advantages. You cannot find better clarity anywhere else, but you will also pay for it. I recently upgraded to an HD Camcorder and paid about $400 for it, not including my software upgrades that I had to purchase.
It's best to weigh your options about what you want to do specifically with your camcorder.