Why are my 4K recordings maxing out at 3.67GB?

[WithTheBirds]

Then how is it possible that one can stitch the files together using an editor, if AVI has the limitation?

I never mentioned anything with respect to stitching files and I can’t understand the relevance of your question. Perhaps you should read a bit slower to get the thread context and history before racing to post. I already corrected my earlier post with respect to AVI specific issues.