Protected FLV not accessible?

[chr]

First off let me just say Hello to all! I am a newbie here and want to say Hi!
I am not well versed in the details of how to (or if it is possible) to get around the following issue I am having and I was hopping someone with know-how might be able to tip me off?

I am trying to download for offline playback videos from a particular website (http://www.checkdent.com/en/dental-videos/all) which seem to be protected. Now, after reviewing threads in this wonderful forum and after trying many methods I was finally able to download the Flv's using Orbit grab pro.

now the issue I can't get around

the Flv's are for some reason completely unplayable. Using updated VLC, FlV player and others they dont load... but they play fine on the website, so I am back at ground zero with no playable file. I have noticed that Realplayer starts to play the videos but stops after a few seconds of playback! I have NO IDEA what is going on, or what to do! Can someone PLEASE PLEASE PLEASE point me in the right direction?

here is an example URL of a video I would like to download but CANT.

http://www.checkdent.com/en/videos/a...tation-13.html


Thanks SO much if anyone can help!