Before learning how to burn FLV to Blu-ray, let's know more about Blu-ray together.
What is Blu-ray?
According to Wikipedia, Blu-ray Disc (official abbreviation BD) is an optical disc storage medium designed to supersede the DVD format. The standard physical medium is a 12 cm plastic optical disc, the same size as DVDs and CDs. Blu-ray Discs contain 25 GB per layer, with dual layer discs (50 GB) the norm for feature-length video discs and additional layers possible in the future.
If you wish to watch FLV video on your Blu-ray player. You come the right place, the Video Converter introduced below can help you to convert FLV to Blu-ray with amazing speed and perfect output quality.
Preparation: Free download the FLV to Blu-ray Converter, and then install the FLV to Blu-ray Converter all right.
Step 1: Add FLV file
Start the software, click the upper "Browse..." button to choose the prepared FLV video file as the input.

Step 2: Output settings
Click the "To Blu-ray" button on the toolbar to choose Blu-ray format as the output format.
Click the lower "Browse..." button to set the root directory to save the converted files.

Step 3: Start burning FLV to Blu-ray
At last, click the "Convert Now!" button to start to convert FLV to Blu-ray, when the conversion task is over, and it will pop up a Information box as follows.

Insert a blank Blu-ray Disc into the drive, and then press the "Burn to Disc..." button to start to burn FLV to Blu-ray.
Related Links: 3GP to Blu-ray Converter, Convert MOV to Blu-ray