Exactly what is INSIDE the video you are editing?
Codec & Format information, with 2 links inside for you to read http://forums.adobe.com/thread/1270588
Report back with the codec details of your file, use the programs below... A screen shot works well to SHOW people what you are doing
https://forums.adobe.com/thread/1070933 for screen shot instructions
Free programs to get file information for PC/Mac http://mediaarea.net/en/MediaInfo/Download
Does your video use a VARIABLE Frame Rate or a Constant Frame Rate?
Here are some Screen Capture Notes/Problems
NOTE - do NOT use a Variable Frame Rate capture setting !!!
Free Open Source software http://camstudio.org/
-use with Lossless Lagarith http://forums.adobe.com/thread/875797
Some of these notes are for Premiere Elements, but may help with PPro
Fraps & Elements http://forums.adobe.com/thread/967201
-and Elements preset http://forums.adobe.com/thread/943772
-and more Elements http://forums.adobe.com/thread/871095
-and Lagarith Codec http://forums.adobe.com/thread/1287577
Techsmith codec http://forums.adobe.com/message/3692768
BB Flashback http://forums.adobe.com/thread/1074014
XSplit recorder http://forums.adobe.com/thread/1160940
Elgato http://forums.adobe.com/thread/1163126 w/picture
Bandicam read #10 http://forums.adobe.com/thread/954394
Actually this time it was my capture device software, although adobe does glitch occasionally on uber long captures (like 2 to 3 hour long) but not by much. This was all over the place, I guess my capture device decided to screw things up because it wouldn't work even in a regular player.
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