The biggest problem is that my connection is not fast enough to record 600+ kbps live RTMP streams. If you can upload a small video (~10 minutes) to a file sharing web-site, I can try to fix the FLV file.

Also I have send your request to the developer of Replay Media Catcher, so hopefully he will be able to help.

VLC player has many problems playing FLV files. Do you have the same problem in Applian FLV Player, Media Player Classic with K-Lite Codec Pack and/or KMPlayer?

Also how exactly did you try to fix your recordings with RMC? Have you tried to fix duration only or have you tried to fix time as well?