how to trim a mts video files without recoding?

[lindairion]

"I'm also unable to trim .mts files using VS X2 12.0.98.0.Pro. I simply copy these original AVCHD files using Windows (XP) Explorer from my memory card to my hard drive for video editing. No conversion is involved in this step. My Panasonic records/saves the digital video directly to my memory card. I'd like to trim a MTS file then convert/save the trimmed video as a mpg file."

"Making a youth sports highlight video. Have many hours of video in .mts format from my canon HF20. I want to trim out only parts of these videos and keep the small clips of the highlights only in separate, smaller mts files. My intent is to delete everything else to get rid of the extra data (most of it is not my own kids so I dont want to keep the larger files). What is the best way to trim out the small pieces into separate mts files and delete the rest? "