You can't crop off the top and bottom of your video and change its frame size.
However, depending on what type of camcorder your video came from, you should be able to use a 16:9 project settings for your Premiere Elements project and get a 16:9 video output with no letterboxing.
What type of camcorder did your original video come from?
What project settings are you using in Premiere Elements?
My free Basic Training with Premiere Elements tutorials at Muvipix.com show you how to select the correct project settings for most major video formats.
I'm using canon s10 HD setting. My preset PE8 is NTSC AVCHD-HD/1080i 30 5.1. The reason for the preset is I'm burning video and afterward sharing on the web setting Window Media advance for 6540x480. Since I had edit the video for DVD burning, gone ahead and share thru window media for posting on our web page.for viewing. The setting is at 16:9, what should the preset be in order to get rid of the top and bottom. Thanks
You should use the AVCHD 1920x1080 5.1 project setting.
If you do, then any Share option you use should come out 16:9 without any modifications on your part.
There's no selection for AVCHD 1920x1080, just AVCHD HD or AVCHD Full HD the frame setting are 1920x1080. The preset I use is good for widescreen TV. When playing on regular TV I'm getting the black top/bottom. My main objective to have a preset on PE8 that share wmv at 600kbbps smaller size without the black top/bottom. Thanks
What you describe is exactly how I would expect a 4:3 TV to display a 16:9 image. To fill a 4:3 screen you would need to crop your 16:9 footage to a 4:3 size and then Share it as "DV Standard".
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Yes, the letterboxing is due to a mismatch between the source footage and the Project Preset. Get that correct, and you will not have the issues.