Hi all! I'm looking for a replay editor to cut out a part of my replay. I have 15 minutes long replay but I need only 3 minutes of it. Possible to do?

mprEdit (3.3 and 4.0) doesn't want to work with my spr replay.

It's really annoying that when I click at about 15th minute to retake a 3-second shot I have to wait for 1 minute and 15 seconds (!) because it goes from the start again for some reason. It's like with the old VHSs, but it always goes from the beginning..