Ira,

Today I thought I would convert that AVI to an MP4 and presto, it plays on the Blu-ray.

I don't know why that would make a difference, perhaps you do and if so, please tell me.

jaybass

OS 13.6.6 iMac (Retina 5K, 27", 2017, 3.4 GHz Intel Core i5, 24 GB RAM, 2400 MHz DDR4. SuperDuper. 1 TB Lacie HD