xiibalba
You have posted in the wrong forum if your program is Premiere CS5.5. This is the Premiere Elements Forum.
Please post your thread in the Premiere Pro Forum or wait for a moderator to see your thread here and move it from here to there.
Just what is the project preset that you or the program set for this video source. If the project is doing the project settings, have you checked to
assure that it is doing it correctly?
In Premiere Elements AVCHD is now a native format, so when you import it with the correct project preset there is no colored line over its content. After its first edit there will be an orange line that will turn green after Timeline rendering.
I have never used Premiere CS5.5 so I cannot speak to the particular differences that might exist between Premiere Elements and Premiere Pro in this regard.
The Premiere Pro users will be able to address fully your Premiere Pro issue.
ATR.