Replay Media Catcher 4 can only download RTMPE video when RTMPE playlist is available.
rtmpsuck doesn't have any problem saving a 720p stream:
Code:
Streaming on rtmp://0.0.0.0:1935
Processing connect
app: vod
flashVer: LNX 10,1,53,64
swfUrl: http://i0.bzpics.com/player/wide_tour_player_minBW.swf
tcUrl: rtmpe://fms.mlib.trailers.brazzers.com/vod
pageUrl: http://www.brazzers.com/tour3/index.php?action=scene&id=4952
WARNING: Trying different position for server digest!
Playpath: mp4:diana_prince/vids/hd-trailers/mlib_diana_prince_trailer_1280_3000-hd.f4v
Saving as: mlib_diana_prince_trailer_1280_3000-hd.f4v
You can try to use the parameters it provides to download with
rtmpdump.