I’ll definitely check out VideoReDo, thanks for that. I’ll also have a look at the forum you suggested.
I have, in fact, previously done some digging around regarding this and have found a handful of options, I just came here to see if anyone had any preferred methods of doing so before I moved forward with any of those options (most importantly having to pay for a piece of software that I’ll only use once or twice).
Cheers for your help, Wayne.