Originally Posted by NoWhErE

I know you're not challenging me, I'm just saying I used this method alot


Ok, this is what you're doing wrong : loaded the original vid into the source screen, right clicked the timeline and selected replace footage with video from source screen


Actually, you don't need to load the original vid into the source screen.

Once you've copied the low-res timeline into the High-Res Timeline, go to your BIN (the window at the far left where your low res clips are stored) and right click on the video file in the bin. A menu will popup with the option to REPLACE FOOTAGE.

Click that. A browser window will popup, go find your HD video. Select it.

Boom. You're low res file is now replaced with its high res version.