QT Player supports MPEG-4 SP, AVC and AAC in the MP4 container so it can play video produced and streamed by Apple's software or any other software producing compliant media files. Likewise other players support a "QuickTime" .MP4 videos.

Unfortunately I don't see anything else I can suggest here.

I've contacted Streamingstar about HiDownload and MovRecorder. Hopefully they will reply soon.