I've tried using Adobe Premiere to save a video for iBooks Author. The problem is that when I export my project as a mpeg2 file the quality of the video degrades a lot.
I am using images to re-create a Ken Burns/panning and scaling effect. I want the quality of the exported video of the images I am using to remain as high as possible. I am aware that iBooks Author optimizes and resizes the imported videos automatically. But right now the quality of the video isn't up to the standard I would like it to be, even before the iBooks optimisation. What settings should I use in Premiere Pro to export a video that is going to be used in iBooks Author?
Frame rate 23.972
field order- progressive
Aspect- square pixel(1)
TV standard - NTSC
Level- 4.0
Bitrate encoding- VBR 2 pass
Target bitrate- 5 Mbps
Maximum Bitrate- 8Mbps
Keyframe distance- 72