A:Answer Thank you for reaching us regarding LG Blu-ray Disc. Yes, you can make a disc using the LG BP50NB40 Blu-ray writer with videos shot on your Sony 4K recorder. The LG BP50NB40 supports various disc formats, including Blu-ray (BD-R, BD-RE), DVDs, and CDs, allowing you to burn your recorded videos onto Blu-ray discs. You can download its owner's manual through this link for more information: https://www.lg.com/us/support/product/lg-BP50NB40.AVAR10B. For additional assistance, please reach out to us on social media @LGUSSupport so we can help you further. ^Cris