That depends on what Software you're using...... I think...... Either way I wouldn't know..... good luck buddy.
I'm no export but shouldn't you be using "Video Shop" to edit videos ? You can create a black redaction bar and layer it to cover every frame where the name appears.
I put a black bar over the person's name over the whole vid and exported it and like I said it somehow came out 8.8GB. The video is exactly what I wanted but 8.8GB is unacceptable
Download VideoPad. It's free. Create a rectangle image, then overlay it on top of the video where the person's name is. Save as .avi. Done.
Either way I wouldn't know..... good luck buddy.