Hi there and welcome Phil,
To add to Steven's excellent suggestions...
What software do you use to watch the video stream ? Does that have the ability to "record" ?
Some streams, are impossible to record 'conventionally' because of the copyright protection...
Even though you may be able to record...playback is sometimes impossible because of the 'protection' built in...
Another way of doing may be to use something Like
Snapz Pro... I have it and will give it a try...not sure successful it will be ?
regards
Ric